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Advanced Math/Questions Answered by Expert Paul Klarreich
| Subject | Date Asked |
| Sets, elements, subsets | 2/4/2012 |
| Q: *** I'm not asking you to solve this. Can you please explain how to do these types of problems? You ... A: Questioner:Sarah Country:Florida, United States Category:Advanced Math Private:Yes ... | |
| Maximum-minimum problem | 2/3/2012 |
| Q: a room of area 18m^2 is divided into six cubicles of equal floor area by erecting two wooden ... A: Questioner:Rubelyna room of area 18m^2 is divided into six cubicles of equal floor area by erecting ... | |
| averages | 1/26/2012 |
| Q: I substitute teach a few days a week and have been trying to figure out how to determine the average ... A: I substitute teach a few days a week and have been trying to figure out how to determine the average ... | |
| averages | 1/24/2012 |
| Q: I substitute teach a few days a week and have been trying to figure out how to determine the average ... A: Questioner:David Subject:averagesI substitute teach a few days a week and have been trying to figure ... | |
| Trig graphs | 1/20/2012 |
| Q: after exercising for a few minutes, a person has a respiratory cycle for which the velocity of air ... A: Questioner:alexa Country:California, United Statesafter exercising for a few minutes, a person has a ... | |
| Linear functions. | 1/11/2012 |
| Q: It ask for you to find the function rule from the graph and the graph states that x|0|1|2|3|4| and ... A: Questioner:U. N. Owen Country:Pennsylvania, United States Category:Advanced Math Private:Yes ... | |
| Trig graphs | 1/9/2012 |
| Q: I've been working in this problem since yesterday and I don't known what to do next. The ferris ... A: Questioner:vicky Country:Texas, United States Category:Advanced Math Private:No ... | |
| Absolute value function. | 12/31/2011 |
| Q: Klarreich, I need help with this maths|t+2|+|3t-1|<5 Thank you A: Questioner:Rima Country:New South Wales, Australia Category:Advanced Math Private: No ... | |
| Linear equations | 12/29/2011 |
| Q: Line 1 has a slope of M, and y intercept of (0,2). Line 2 has a slope of 2 and a y intercept of ... A: Questioner:Flo Country:Connecticut, United States Category:Advanced Math Private:Yes ... | |
| Absolute value function. | 12/27/2011 |
| Q: the function f(x)=/ax-1/ - /bx+2/ is such that f(-1/2)=1 and f(1/3) = -7/3. given that 0 is less ... A: Questioner: kwibisa Country: Luapula, Zambia Category: Advanced Math Private: No Subject: ... | |
| integration | 12/25/2011 |
| Q: what is the integration of inverse e^2x? and what is the integration of inverse sin 3x? thanks ... A: Questioner: Mella Country: Jawa Timur, Indonesia Category: Advanced Math Private: No Subject: ... | |
| Matrix square root | 12/24/2011 |
| Q: Sir,in my opinion it is possible that every square matrix can have a square root matrix having the ... A: Questioner: ASWIN Country: Kerala, India Category: Advanced Math Private: Yes <<<<<<<<<<<<<<<<<< ... | |
| Basic graph sketching | 12/19/2011 |
| Q: Q> Find any stationary points of the graphs of: a> y = 2 - (e^x) b> y = 2(x^2) + ... A: Questioner:Anurag Country:Nepal Category:Advanced Math Private:Yes <<<<<<<<<<<<<< changed Subject: ... | |
| Eigenvectors | 12/15/2011 |
| Q: I'm a first year Science student from Ireland and I've been studying for my Algebra final. I've been ... A: Questioner: Adam Private: Yes Changed it to public Subject: Eigenvectors.HiFind the ... | |
| Eigenvectors | 12/15/2011 |
| Q: I'm a first year Science student from Ireland and I've been studying for my Algebra final. I've been ... A: Questioner: Adam Country: Wicklow, Ireland Category: Advanced Math Private: No Subject: ... | |
| Trigonometric identity | 12/11/2011 |
| Q: prove that (cscA+cotA)/(cscA-cotA) = (1+2cosA+cos^2A)/(sin^2A) A: Questioner: Ashley Country: Ontario, Canada Category: Advanced Math Private: No Subject: Trig ... | |
| Binomial expansion | 11/26/2011 |
| Q: I am wondering if there is a closed form solution, involving logarithms perhaps, to the following ... A: Questioner: Jim Monahan Country: Massachusetts, United States Category: Advanced Math Private: No ... | |
| Logarithmic equation | 11/18/2011 |
| Q: I'm in a grade 12 math course and we are studying logarithmic equations. I can't quite figure out ... A: Questioner: Michelle Country: Prince Edward Island, Canada Category: Advanced Math Private: No ... | |
| linear independence | 11/11/2011 |
| Q: If i have a system of n equations with n unknowns, with NATURAL NUMBERS coefficients and for some ... A: Questioner: sean Country: Gambia Category: Advanced Math Private: No Subject: linear ... | |
| Inequalities | 11/11/2011 |
| Q: actually i am studying logarithms for iit-jee &i want to know the different conditions to solve and ... A: Questioner: praveen Country: Maharashtra, India Category: Advanced Math Private: No Subject: ... | |
| Complex numbers | 11/10/2011 |
| Q: I have a test next Monday and I am stuck on a few problems that I really need help on. Any help at ... A: Questioner: crayton Country: Connecticut, United States Category: Advanced Math Private: No ... | |
| Exponentials | 11/7/2011 |
| Q: sir i am from pakistan ,i am in intermidiate and student of mathematics,my question is that how we ... A: Questioner: owais Private: No Subject:sir i am from pakistan ,i am in intermidiate and student ... | |
| Exponential Functions | 11/5/2011 |
| Q: A community grows in such a way that t years from now, its population is P(t) thousand, where ... A: Questioner: Kristen Country: Tennessee, United States Category: Advanced Math Private: No ... | |
| Exponential Functions | 11/4/2011 |
| Q: In an experiment to test short term memory. L.R Peterson and M.J. Peterson found that the ... A: Questioner: kristen Country: Tennessee, United States Category: Advanced Math Private: No ... | |
| Systems of equations | 10/19/2011 |
| Q: Do you know a cubic polynomial that approximates cosine or sine "reasonably well" over entire period ... A: Questioner:jean Country:Gambia Category:Advanced Math Private:NoThanks .How would one prove a system ... | |
| systems of equations | 10/17/2011 |
| Q: Do you know a cubic polynomial that approximates cosine or sine "reasonably well" over entire period ... A: ANSWER: Questioner:jean Country:Gambia Category:Advanced Math Private:NoThanks .How would one prove ... | |
| cubic approximation | 10/14/2011 |
| Q: Do you know a cubic polynomial that approximates cosine or sine "reasonably well" over entire period ... A: Questioner:jean Country:Gambia Category:Advanced Math Private:No Subject:cubic approximationHello ... | |
| Symbolic logic | 10/8/2011 |
| Q: I need help to answer this question, I am taking mathematics discrete in my distance learning ... A: Something is wrong with your expression -- perhaps you have not parenthesized it correctly. I ... | |
| Polynomial Rings | 10/4/2011 |
| Q: I am a graduate student in software engineering, and am taking a class in computer security. We are ... A: Questioner:Andrew Troelsen Country:Minnesota, United States Category:Advanced Math Private:No ... | |
| Binomial expansion | 10/1/2011 |
| Q: I was looking at the question and answer you gave on ... A: Questioner:Elli Country:London, City of, United Kingdom Category:Advanced Math Private:No Subject: ... | |
| COMPLEX VARIABLE | 9/30/2011 |
| Q: please help me out with this question Q) Using the definition of the derivative as a limit, give a ... A: Questioner:Attir Country:Ontario, Canada Category:Advanced Math Private:No Subject:COMPLEX ... | |
| Conditional probability | 9/23/2011 |
| Q: A bank has a test designed to establish the credit rating of a loan applicant. of the persons, who ... A: Questioner:devesh Country:India Category:Advanced Math Private:No Subject:probabilityA bank has a ... | |
| Polynomial Equations | 9/15/2011 |
| Q: Given f(x)=x^3-6x^2+7x+12, what is the sum of the squares of it's zeros? A: Questioner: Courtney Category: Advanced Math Private: No Subject: PolynomialsGiven ... | |
| Are These Correct? | 9/8/2011 |
| Q: If it isn't too much trouble, would you mind checking to see if my answers are correct for these ... A: Questioner:Miss Susan Wilson Country:Texas, United States Category:Advanced Math Private:No ... | |
| Trigonometric equation. | 9/5/2011 |
| Q: How to solve: sin7x + cos3x = 0 A: Questioner:Ron Country:Isle of Man Category:Advanced Math Private:No Subject:mixed sum to product ... | |
| Powers | 9/4/2011 |
| Q: Some examples of Power / Exponent / Index 1. 2 raised to 3 2 ×2 ×2 = 8 2. 1.1 raised to 1.1 ... A: As you mention if they are valid operations, But then how to compute without using a calculator but ... | |
| Powers | 9/4/2011 |
| Q: Some examples of Power / Exponent / Index 1. 2 raised to 3 2 ×2 ×2 = 8 2. 1.1 raised to 1.1 ... A: Questioner:Prashant S Akerkar Country:Maharashtra, India Category:Advanced Math Private:No Subject: ... | |
| Probability | 9/1/2011 |
| Q: How are you? Will you check to see if these answers are correct? Problem 1 - A simple dartboard has ... A: Questioner:Miss Susan Wilson Country:Texas, United States Category:Advanced Math Private:No ... | |
| Trigonometric equation. | 8/31/2011 |
| Q: Find real values of x for which (4+3isinx/1-2isinx) is purely 1)real 2)purely imaginary A: Questioner:Dhananjay Country:Maharashtra, India Category:Advanced Math Private:No Subject:Complex ... | |
| Inequalities | 8/28/2011 |
| Q: Solve: (-3/4)m ≥ m-1 or (-3/4)m < m+1 Sorry about the parenthesis problem. I just wrote ... A: Questioner:Maxine Country:Illinois, United States Category:Advanced Math Private:No Subject:Alg. ... | |
| Remainder theorem | 8/26/2011 |
| Q: Here's my question about function: Let F(x#=x^99+K, Part A:When F#x)is divided by x+1,the ... A: Questioner:Desmond Country:Hong Kong Category:Advanced Math Private:No ... | |
| Compound interest. | 8/25/2011 |
| Q: If i had two sons aged 16 and 19 and their birthday was on the same day and i had R100000 in total ... A: Questioner:Pri Country:Gauteng, South Africa Category:Advanced Math Private:No Subject:Financial ... | |
| probability | 8/22/2011 |
| Q: 1. what is the probability of picking a heart and a spade in a standard deck of playing cards? 2. ... A: Questioner:bheki Country:Gauteng, South Africa Category:Advanced Math Private:No ... | |
| Exponential Functions | 8/22/2011 |
| Q: can you please help with this: I can't find an equation for the exponential function that has the ... A: Questioner:Oliver Country:Quebec, Canada Category:Advanced Math Private:No Subject:Exponential ... | |
| Symbolic logic | 8/21/2011 |
| Q: Paul. It's Susan, again. I just sent you an email, and I forgot to include these 2 problems. I just ... A: Questioner:Miss Susan Wilson Country:Texas, United States Category:Advanced Math Private:NoHi, Paul. ... | |
| Symbolic logic | 8/21/2011 |
| Q: I was wondering if you could clarify whether or not my answers are correct. I don't want to turn ... A: Questioner:Miss Susan Wilson Country:Texas, United States Category:Advanced Math Private:No ... | |
| Symbolic logic | 8/19/2011 |
| Q: I was wondering if you could clarify whether or not my answers are correct. I don't want to turn ... A: Questioner:Miss Susan Wilson Country:Texas, United States Category:Advanced Math Private:NoHello! I ... | |
| Mathematical and Physical Constants | 8/17/2011 |
| Q: Referring to the Wikipedia Link for Mathematical Constants ... A: Questioner:Prashant S Akerkar Country:Maharashtra, India Category:Advanced Math Private:No ... | |
| Basic algebra. | 8/14/2011 |
| Q: plz answer me in detail of these questions. 1.a stone is thrown vertically upward so that its ... A: thanx a lot for answering my questions.you were a grt help.there are two more questions i would like ... | |
| Basic algebra. | 8/13/2011 |
| Q: plz answer me in detail of these questions. 1.a stone is thrown vertically upward so that its ... A: Questioner:NADIA Country:Punjab, Pakistan Category:Advanced Math Private:No Subject:urgentplz answer ... | |
| Law of cosines | 8/11/2011 |
| Q: How do i find the side lengths of this triangle? (in image below). I do not need to know the side ... A: I think you can start by using these ideas: ------------------------------- Draw AD perpendicular to ... | |
| Quadratic equation | 8/10/2011 |
| Q: How to solve this? It's about solving problems in quadratic equation. Here's the problem : The ... A: Questioner:Bobby Country:Nueva Ecija, Philippines Category:Advanced Math Private:No ... | |
| complex analysis | 7/10/2011 |
| Q: Prove that if z1+z2+z3=0 and norm of z1=norm of z2=norm of z3=1, then z1,z2,z3 are the vertices of ... A: Questioner:keithbads Country:Rizal, Philippines Category:Advanced Math Private:No Subject:complex ... | |
| 3D vector | 7/5/2011 |
| Q: In 3 dimensional vector, the line segment from vector r0 to r1 is given by vector r= ... A: Questioner: Robert Country: Yangon, Myanmar Category: Advanced Math Private: No Subject: 3D ... | |
| trigonometric identity | 7/4/2011 |
| Q: 1+cosA+sinA/1+cosA-sinA = 1+sinA/ cosA A: Questioner: see Country: Dubai, United Arab Emirates Category: Advanced Math Private: No ... | |
| 3D vector | 7/4/2011 |
| Q: In 3 dimensional vector, the line segment from vector r0 to r1 is given by vector r= ... A: Questioner: Robert Country: Yangon, Myanmar Category: Advanced Math Private: No Subject: 3D ... | |
| Modular arithmetic | 7/3/2011 |
| Q: What is the reminder when 3^64 is divided by 28? A: Questioner: ramo Country: Minnesota, United States Category: Advanced Math Private: No Subject: ... | |
| Simultaneous equations | 6/28/2011 |
| Q: solve for x and y in the equations..2x+y=3 (1st equation ) 3x-y=-3 (2nd equation) using substitution ... A: Questioner: rayxel Country: Baguio, Philippines Category: Advanced Math Private: No Subject: ... | |
| Functions | 6/26/2011 |
| Q: Write the point-slope form of the lines equation satisfying the condition. Then use the point slope ... A: Questioner: Terri Country: Michigan, United States Category: Advanced Math Private: Yes <<< I ... | |
| Probability | 6/24/2011 |
| Q: 3 cards are drawn at random from apack of cards,without replacement,find the probability that at ... A: Questioner: tafadzwa Country: Zimbabwe Category: Advanced Math Private: No Subject: probability3 ... | |
| Velocity and acceleration | 6/21/2011 |
| Q: I have a G6 Ponitac (2009) My question is would it be physically possible for a car to accelerate ... A: Questioner: Lucy Fitch Country: Michigan, United States Category: Advanced Math Private: No ... | |
| Normal distribution. | 4/27/2011 |
| Q: A Bio tutor recorded the lung capacity of each 16-year-old in her school.The tutor determined that ... A: Questioner: Andrea Category: Advanced Math Private: No Subject: Probability and ... | |
| Growth curves | 3/27/2011 |
| Q: A troop of howler monkeys was introduced onto an island on 1 July 1965, and the approximate size of ... A: Questioner: elle Category: Advanced Math Private: No <<<<<<<<<<<<<<<<<<<< fixed. Subject: mathsA ... | |
| Trigonometry | 3/14/2011 |
| Q: i have tried to work with this problem in order to understand how to solve such problem but I get ... A: Questioner: vidhi Country: United Kingdom Category: Advanced Math Subject: trigonometryi have ... | |
| Maximum-minimum problem | 3/13/2011 |
| Q: A cone is made by cutting a sector of angle (theta) from a circle with a radius of 1 and gluing the ... A: Questioner: Alan Category: Advanced Math Private: No Subject: Volume of a ConeA cone is made by ... | |
| Partial fractions | 3/11/2011 |
| Q: let f(x)=(1-x)²/(1+x)(1+x²),express f(x) in partial fraction. hence or otherwise,show taat if x is ... A: Questioner: rusooly Country: Mauritius Category: Advanced Math Private: Yes ... | |
| Graph sketching | 3/4/2011 |
| Q: i was wondering how i could sketch the graph of (cos(2*PI*t/T)^3) Where i believe T=2*PI. I am not ... A: Questioner: jay Country: United Kingdom Category: Advanced Math Private: No Subject: ... | |
| Imaginary numbers | 3/3/2011 |
| Q: I have been told that the square root of -1, i, has no sign. ie it is not positive or negative. Also ... A: Questioner: Padraic Country: United Kingdom Category: Advanced Math Private: No Subject: Sign of ... | |
| Polar coordinates | 2/27/2011 |
| Q: 1. Identify the quadrant in which the angle terminates: -50 2. Give the polar coordinates: ... A: Questioner: krsty Country: United States Category: Advanced Math Private: No Subject: algebra1. ... | |
| Perimeter and area | 2/23/2011 |
| Q: College Precalculus; Modeling with functions A rectangle has an area of 22 m^2. Find a function ... A: Questioner: Christina Country: United States Category: Advanced Math Private: No Subject: ... | |
| Circle equation | 2/19/2011 |
| Q: "Find the acute angle between the tangents to the circle x^2+y^2-2x+8y-23=0 from the point (8,-3)" A: Questioner: Dhananjay Country: United States Category: Advanced Math Private: No Subject: ... | |
| Inequalities | 2/18/2011 |
| Q: B is equal to Bracket (x,y) is an element of real numbers*2:y is greater than or equal to 2x + 1 ... A: Questioner: ancy Country: United Kingdom Category: Advanced Math Private: Yes <<<<<<<<<<<<<< ... | |
| Circle equation | 2/18/2011 |
| Q: Show that the tangents drawn from the origin to the circle x^2+y^2-14x+2y+25=0 are mutually ... A: Questioner: Dhananjay Country: India Category: Advanced Math Private: No Subject: ... | |
| Sum of the angles of a polygon | 2/17/2011 |
| Q: how do i prove that the sum of the interior angles of a convex polygon is 180°(n-2)? A: Questioner: monique Country: Jamaica Category: Advanced Math Private: No Subject: convex ... | |
| Limits | 2/16/2011 |
| Q: how could i solve the x^3+8/x^4-16 with limits? A: Questioner: zara Country: Pakistan Category: Advanced Math Private: Yes <<<<<<<<<<<<<<<<<< ... | |
| Circle equation and slopes | 2/15/2011 |
| Q: Show that the line (x-h)cos(alpha)+(y-k)sin(alpha)=a touches the circle (x-h)^2+(y-k)^2=a^2 for all ... A: Questioner: Dhananjay Category: Advanced Math Private: No Subject: Maths-CircleShow that ... | |
| Mathematical Divisiblity Proofs | 2/14/2011 |
| Q: I'm really stuck on these 2 proof problems. Can you show me how to do them? ANY help on ANY part of ... A: Questioner: Blake Category: Advanced Math Private: No Subject: Math 3034: Mathematical ... | |
| Equation of a circle | 2/13/2011 |
| Q: If a large pipe is placed between a 1 ft. chunck of wood and a 2 ft. chunck of wood that are 6 ft. ... A: Questioner: Carrie Category: Advanced Math Private: No Subject: Pre-calculus word ... | |
| Quadratic function. | 2/13/2011 |
| Q: I am in the IMP program book one. The coordinates are (1,2) (2,4) (3,7) (4,11) (5,16)(6,22). Please ... A: Questioner: Caleb Kraft Country: United States Category: Advanced Math Private: No Subject: Math ... | |
| Factoring polynomials | 2/12/2011 |
| Q: Can I factor x^3-7x-6? and if yes, how? A: Questioner: Camila Country: Canada Category: Advanced Math Private: No Subject: FactoringCan I ... | |
| Angle of inclination. | 2/11/2011 |
| Q: a treadmill grade is 6% What is the angel of the surface that makes horizontal line? A: Questioner: joanna Country: United States Category: Advanced Math Private: No Subject: geometrya ... | |
| polynomial factoring | 2/10/2011 |
| Q: The area of a rectangular athletic field is represented by the expression 14z^4-42z^3-+63z square ... A: Questioner: Karen Country: United States Category: Advanced Math Private: No Subject: ... | |
| Simultaneous equations | 2/8/2011 |
| Q: topic:system of equations Hello, I am of the opinion that two equations are equivalent if you can ... A: Questioner: jon Country: Gambia Category: Advanced Math Private: No Subject: equivalence of ... | |
| Fallacies. | 2/7/2011 |
| Q: 1^0 =1 && 2^0=1 therefore 1^0=2^0. as powers are equal bases would be equal. therefore 1=2.....how ... A: Questioner: will Country: India Category: Advanced Math Private: Yes << changed Subject: maths1^0 ... | |
| Basic arithmetic. | 2/6/2011 |
| Q: 50 – 5.00pm with a half lunch hour break. A: Questioner: roy Country: New Zealand Category: Advanced Math Private: Yes <<< changed. Subject: ... | |
| Laws of sines and cosines | 2/6/2011 |
| Q: deriving sine and cosine rules? I need help with this worded trig problem Draw a non-right angled ... A: Questioner: vidhi Country: United Kingdom Category: Advanced Math Private: Yes Subject: ... | |
| Pascal's Triangle - Binomial expansion. | 2/4/2011 |
| Q: ..I need help with the following" Show how to use Pascal's triangle to expand (x + 2)^4 by ... A: Questioner: Trish Country: Canada Category: Advanced Math Private: No Subject: Pascal's Triangle ... | |
| Pythagorean triples | 2/2/2011 |
| Q: Can you help, please? PS see the attached JEPG document. Thanks Aba A: First part is routine: x^2 + y^2 = 25: (a/b)^2 + (c/d)^2 = 25 (ad)^2 + (cd)^2 = 25(bd)^2 << mult ... | |
| Probability | 1/31/2011 |
| Q: An investor holds shares in three independent companies: Company A, Company B, Company C. An ... A: Questioner: Andrea Country: Canada Category: Advanced Math Private: No Subject: ProbabilityAn ... | |
| Probability | 1/30/2011 |
| Q: One committee is to have 7 members,chosen randomly from interested community members.There are 10 ... A: Questioner: Andrea Country: Canada Category: Advanced Math Private: No Subject: ProbabilityOne ... | |
| Trigonometric graphs | 1/29/2011 |
| Q: Sketch the graph of the function (you do not have to include your hand sketch in the assignment). ... A: Questioner: kieran Country: United States Category: Advanced Math Private: No Subject: please ... | |
| Probability | 1/28/2011 |
| Q: Trinity High School encourages students to donate blood. The high school gym is set up for this ... A: Andrea Country: Canada Category: Advanced Math Private: No Subject: ProbabilityTrinity High ... | |
| Trig & 3-Space | 1/26/2011 |
| Q: I'm in grade 12 Trig & 3-space, and right now I'm working on trigonometric functions. The question ... A: Questioner: Kim Country: Canada Category: Advanced Math Private: No Subject: Trig & 3-SpaceI'm ... | |
| Quadratic Simultaneous equations | 1/25/2011 |
| Q: I'm really Stuck with the following question. Please help me out if you can. xy = -24 x^2 + y^2 = ... A: Questioner: Navindra Country: Sri Lanka Category: Advanced Math Private: No Subject: Quadratic ... | |
| Mixture problem | 1/25/2011 |
| Q: a. Two bottles contain mixtures of wine and water. In bottle A there is two times as much wine as ... A: Questioner: Yasiru Category: Advanced Math Private: No Subject: General maths ... | |
| linear functions | 1/23/2011 |
| Q: My daughter needs to find the rule for this function table. Input (x) are -1 0 and 3 Output (y) ... A: Questioner: Angela Country: United States Category: Advanced Math Private: No Subject: function ... | |
| circumference relative to radius | 1/18/2011 |
| Q: in the question you answered here ... A: Questioner: Andrew Country: United States Category: Advanced Math Private: No Subject: ... | |
| Cauchy's Integral Theorem. | 1/14/2011 |
| Q: What is the value of the integral ʃ ez sinzdz/z2, where the given integral is the integral ... A: Questioner: Swinky Country: India Category: Advanced Math Private: No Subject: Complex ... | |
| Variation | 1/14/2011 |
| Q: The time T necessary to make an enlargement of a photo negative varies directly as the area A of the ... A: Questioner: amiee Country: United States Category: Advanced Math Private: Yes <<< Corrected. ... | |
| Geometric series. | 1/13/2011 |
| Q: Hey Paul, I really don't know where to begin. Let r be a real number, r ≠ 1. Prove that ... A: Questioner: Ashley Country: United States Category: Advanced Math Private: No Subject: ... | |
| Hours | 1/12/2011 |
| Q: If I work 7.30 -5.30 3 days a week (Mon – Weds) Thurs and Fri my hours being 8 – 5 Each day I take ... A: Questioner: Lisa Country: New Zealand Category: Advanced Math Private: Yes <<<<<<<<<<<< Fixed. ... | |
| Permutations | 12/17/2010 |
| Q: How many diffrent 6 digit numbers can be formed using the digits of the number 5667724? How many of ... A: ---------- FOLLOW-UP ----------When I tried this lets see the result Line Number Digit ... | |
| Trigonometric Identities | 12/16/2010 |
| Q: Use half-angle formula formula to find exact value of cos(x/2)when cosx= -(12/13), ... A: Questioner: Rohith Country: United States Category: Advanced Math Private: No Subject: ... | |
| Permutations | 12/15/2010 |
| Q: How many diffrent 6 digit numbers can be formed using the digits of the number 5667724? How many of ... A: Questioner: Dhananjay Country: India Category: Advanced Math Private: No Subject: ... | |
| Mixture problem | 12/15/2010 |
| Q: A 25% brine solution was mixed with a 18% brine solution to produce a 20% brine solution. ... A: Alicia. I recently sent an answer to 'Megan' for a similar problem. Here is what I wrote: ... | |
| Trigonometric Identities | 12/14/2010 |
| Q: I drew a picture on paint for it to be easier to ask.. http://i56.tinypic.com/w7i9u.jpg I factored ... A: Questioner: Teresa Country: United States Category: Advanced Math Private: No Subject: ... | |
| Sequences | 12/12/2010 |
| Q: I have a doubt in this question! I am trying to find the answer since a longwhile but am unable to ... A: Questioner: Xiang Country: Canada Category: Advanced Math Private: No Subject: Sequences ... | |
| Linear equations by matrices. | 12/11/2010 |
| Q: solve the following system of linear equations 3x-2y-4z=1 3x-2y-5z=2 -x+y+2z=3 for x,y, and z using ... A: Questioner: loann Country: United States Category: Advanced Math Private: No Subject: ... | |
| Binomial coefficients | 12/10/2010 |
| Q: The sum is as follows: One of the terms in the expansion of (x+3)^7 is k(x)^5.Determine the value of ... A: You are the only expert I have seen who doesnt except ratings! But it becomes my duty to tell you ... | |
| Binomial coefficients | 12/10/2010 |
| Q: The sum is as follows: One of the terms in the expansion of (x+3)^7 is k(x)^5.Determine the value of ... A: Questioner: Andrea Country: Canada Category: Advanced Math Private: No Subject: ... | |
| Quadratic equation | 12/10/2010 |
| Q: (3x-1)^2=7 I have gotten this far but can figure out da resh (3x-1)(3x-1)=7 9x^2-3x-3x+1=7 ... A: Questioner: Marilyn Country: United States Category: Advanced Math Private: No Subject: ... | |
| Mixture Problems | 11/22/2010 |
| Q: I'm having a lot of trouble figuring out why the numbers go where they do, and when to add the x or ... A: Questioner: Megan Country: United States Category: Advanced Math Private: No Subject: ... | |
| Polynomials and intersections of graphs | 11/21/2010 |
| Q: The questions are based on polynomials & history of Maths. Please see the attached picture. Thanks ... A: I will not deal with 1. It is routine, but messy. 2. Is more interesting. A cubic polynomial ... | |
| Complex numbers. | 11/21/2010 |
| Q: Rewrite as a proper complex number (a+bi) (5/8+2i)/(1/2-1/4i) I tried to multiply this fraction by ... A: Questioner: Sammy Country: United States Category: Advanced Math Private: No Subject: ... | |
| Trignometic identities | 11/21/2010 |
| Q: Prove (secx-1)^2-2secx = tan^2x Prove cos^5x = cosx-2sin^2xcosx A: Questioner: Anita Country: Hong Kong Category: Advanced Math Private: No Subject: ... | |
| Trigonometry(Graphs) | 11/20/2010 |
| Q: Paul, In the image which I have uploaded(has the question.) And my answers to this question ... A: Paul, I am sorry to disturb you again but the amplitude and vertical displacement which you ... | |
| Trigonometry(Graphs) | 11/20/2010 |
| Q: Paul, In the image which I have uploaded(has the question.) And my answers to this question ... A: Questioner: Bulbul Country: Canada Category: Advanced Math Private: No Subject: ... | |
| Trigonometric Identities | 11/20/2010 |
| Q: If triangle ABC is right angled at c prove that b=c-c(sinA).tan(A/2) A: Questioner: Dhananjay Country: India Category: Advanced Math Private: No Subject: ... | |
| Trigonometry(Math) | 11/19/2010 |
| Q: An angle with a negative rotation passes through the point (-5,-8).To the nearest degree,what is the ... A: Questioner: Bulbul Country: Canada Category: Advanced Math Private: Yes <<< CHANGED. No ... | |
| Fourier series | 11/18/2010 |
| Q: f(x)= 1/4(x) for -pi<=x<pi and f(x+2pi)=f(x) expand 5 non zero terms..i cannot find bn for this ... A: Questioner: david Country: Singapore Category: Advanced Math Private: No Subject: ... | |
| Geometric Sequences | 11/18/2010 |
| Q: Could you please help me with this? A beetle starts from point O and walks 0.6m east, then 0.36 m ... A: Questioner: toon993 Country: Bangladesh Category: Advanced Math Private: No Subject: ... | |
| Lotto | 11/17/2010 |
| Q: Whats the odds of one number picked being drawn from 45 numbers with 21 drawn numbers A: Questioner: laurence Category: Advanced Math Private: Yes <<<< changed to No.(no private ... | |
| Inverse trigonometric functions | 11/16/2010 |
| Q: The problem is: sin(2cos^(-1) (-5/7)+11π/12) I have attached an image of the problem setup. ... A: Questioner: Kimberly Ivens Country: United States Category: Advanced Math Private: No ... | |
| Trigonometric equations | 11/15/2010 |
| Q: How do I solve these math problems: cos^2x = sinx, when x <0, 2pi> and ... A: Questioner: Anette Country: Norway Category: Advanced Math Private: No Subject: ... | |
| Trigonometric Identities | 11/12/2010 |
| Q: If F(x)= tan x and f(a) = 4, what is f(-a), f(a+ pie), and f(a- pie) A: Questioner: Michelle Country: United States Category: Advanced Math Private: No Subject: ... | |
| Basic derivative rules. | 11/9/2010 |
| Q: i understand the product rule, and i gather that leibnitz rule is the fundamental explanation for ... A: Questioner: jay Country: United Kingdom Category: Advanced Math Private: No Subject: ... | |
| Exponents | 10/21/2010 |
| Q: Simplfy with a positive exponent. (m^-8 n)(m^3 n^-4) I get (m^-5 n^-3) How do I get the ... A: Questioner: Chris Country: United States Category: Advanced Math Private: No Subject: ... | |
| Binomial probability | 10/20/2010 |
| Q: during winter it rains 18 out of 30 days.5 winter days are selected at random.find the probability ... A: Questioner: athena Country: Australia Category: Advanced Math Private: No Subject: ... | |
| probability | 10/20/2010 |
| Q: 5 families have 3 children. find the probability that (i) atleast 1 of these families has 3 boys. ... A: Questioner: athena Country: Australia Category: Advanced Math Private: No Subject: ... | |
| Cube root | 10/19/2010 |
| Q: how would u solve exponet 3 over square root of 1000 A: Questioner: Bober Private:how would u solve exponet 3 over square root of 1000 Do you mean the ... | |
| Changing from base 10 to a given base | 10/19/2010 |
| Q: Express 234 as a numeral in base five. Directions Step 1: Find the largest power of n that will ... A: Questioner: Tiffany Country: United States Category: Advanced Math Private: No Subject: ... | |
| Complex Fractions | 10/18/2010 |
| Q: in the equation: ((2/2+h) -1)/ h why is it that you can multiply the denominator by (2+h)/(2+h) in ... A: Questioner: Carson Country: United States Category: Advanced Math Private: No Subject: ... | |
| The birthday 'paradox' | 10/17/2010 |
| Q: (a) Assume a 365-day year,find the probability that in a group of 3 people there will be atleast 1 ... A: The probability that the second person has a different birthday from the first is: 365 364 --- --- ... | |
| The birthday 'paradox' | 10/16/2010 |
| Q: (a) Assume a 365-day year,find the probability that in a group of 3 people there will be atleast 1 ... A: Questioner: athena Country: Australia Category: Advanced Math Private: No Subject: ... | |
| Matrix operations | 10/16/2010 |
| Q: please solve these equations only by using row operation x+Y+Z=3 2X+2Y+3Z=8 X+2Y+Z=3 A: Questioner: fahad Country: Pakistan Category: Advanced Math Private: No Subject: ... | |
| probability and divisibility | 10/15/2010 |
| Q: a 3 digit number is to be formed from the nmbers 3,4,5,6,7 (repetition not allowed).Find the ... A: Questioner: athena Country: Australia Category: Advanced Math Private: No Subject: ... | |
| Subsets | 10/15/2010 |
| Q: six people are to be divided into 2 groups, each with atleast 1 person.find the probability that, ... A: Questioner: angelo Country: Australia Category: Advanced Math Private: Yes <<< >> Don't ... | |
| permut/combtn | 10/14/2010 |
| Q: there are 10 basketballers in a team.find how many ways they can be split into two eams of 5. Answer ... A: Questioner: athena Country: Australia Category: Advanced Math Private: Yes <<< changed. ... | |
| Inverses of Functions | 10/14/2010 |
| Q: ! I would really appreciate it if you could help me with Inverse Functions. I am supposed to prove ... A: Questioner: Katie Country: United States Category: Advanced Math Private: No Subject: ... | |
| Trigonometric identities | 10/13/2010 |
| Q: Please show me how to prove sin ^3 (x) = 3/4sin x - 1/4sin 3x. Thanks in advance A: Questioner: Dan Country: United States Category: Advanced Math Private: No Subject: ... | |
| Cycloid | 10/12/2010 |
| Q: How can the path of the mark on the wheel of a bicycle that has a radius of 2 units traveling at a ... A: Questioner: Megan Country: United States Category: Advanced Math Private: No Subject: ... | |
| Basic algebra. | 10/12/2010 |
| Q: can you please help me with this? A right triangle has an area of 96 ft2 and a hypotenuse 20 ft ... A: Questioner: Kristin Country: United States Category: Advanced Math Private: No Subject: ... | |
| Trig Identity | 10/12/2010 |
| Q: Prove the following is an identity: sinx/sinx+1=cscx-1/cot^2x A: Questioner: charlie Country: United States Category: Advanced Math Private: No Subject: ... | |
| Directional Derivatives | 10/10/2010 |
| Q: I know you didn't mention multi variable calculus in your description but could you please help me ... A: Questioner: Ntokozo Country: Canada Category: Advanced Math Private: No Subject: ... | |
| Domain | 10/10/2010 |
| Q: How do I determine the domain restriction that makes a quadratic function invertible? For example, ... A: Questioner: Cynthia Country: United States Category: Advanced Math Private: No Subject: ... | |
| Functions | 10/10/2010 |
| Q: How do I determine the domain restriction that makes a quadratic function invertible? For example, ... A: Questioner: Cynthia Private: noHow do I determine the domain restriction that makes a quadratic ... | |
| Calculus | 10/8/2010 |
| Q: if y = tan^3 (3x), what is ((d^2)y)/(d(x^2)) * (pi/12)? I have tried to evaluate it by finding the ... A: Questioner: Christie Country: United States Category: Advanced Math Private: No Subject: ... | |
| Limit | 10/8/2010 |
| Q: Prove the limit n->inf (a)^(1/n)=1 by using epsilon-N definition. Is this within your field ? ... A: Questioner: duan Country: Singapore Category: Advanced Math Private: No Subject: ... | |
| Basic set operations | 10/7/2010 |
| Q: (A U C) X B = A= [A,B,C] B= [C,D,E] C= [A,C,X] How would I go about doing this problem step by ... A: Questioner: Tiffany Country: United States Category: Advanced Math Private: No Subject: ... | |
| Learning Math techniques | 10/6/2010 |
| Q: Klarreich, I don't mean to ask such an oversimple question, but, what, in your experience is the ... A: Questioner: Daniel Private: no Subject:Hello Mr. Klarreich, I don't mean to ask such an ... | |
| Pure mathematics | 10/5/2010 |
| Q: I am looking for any learning resource that can be used to learn pure mathematics.I don't want books ... A: Questioner: hamad Category: Advanced Math Private: No Subject: Pure mathematicsHello. I am ... | |
| Divisibility | 10/5/2010 |
| Q: I need some help w/this proof: "If a whole number is of the form 6n-1, then it must have a prime ... A: Questioner: Dean Country: United States Category: Advanced Math Private: No Subject: ... | |
| Linear functions. | 10/3/2010 |
| Q: f(2n)=2f(n) for all integers n. f(4)=4 If is a function defined for all positive integers , and ... A: Questioner: Ariel Country: United States Category: Advanced Math Private: No Subject: ... | |
| Variation | 10/3/2010 |
| Q: The resistance R of a wire varies directly as its length L and inversely as the square of its ... A: Questioner: Kristin Country: United States Category: Advanced Math Private: No Subject: ... | |
| Abstract Algebra | 10/2/2010 |
| Q: While I was doing my assignment I met with a question and I unsure whether my answer is on the right ... A: Questioner: Raymond Country: Singapore Category: Advanced Math Private: Yes <<< changed. I ... | |
| Abstract algebra - Ring in polynomial | 10/1/2010 |
| Q: I am unsure of the answer I have in polynomial in ring where I need to show that Let F be a field. ... A: Questioner: Raymond Country: Singapore Category: Advanced Math Private: No Subject: ... | |
| complex numbers | 8/16/2010 |
| Q: 1. P is a point in an Argand diagram corresponding to a complex number z, and |z-5| + |z + 5| = 26. ... A: part 1 goes like this: | z - 5| + | z + 5| = 26 Let F1 = (5,0) Let F2 = (-5,0) Now Let P = the ... | |
| Implicit differentiation | 7/7/2010 |
| Q: Find the equations of the tangent line and the normal line to the curve (x^2+y^2)^2 =(x-y)^2 at the ... A: Questioner: Ashley Category: Advanced Math Private: No Subject: CalculusFind the equations ... | |
| fractional bases | 6/24/2010 |
| Q: Greetings, Is it possible to have numbers in fractional bases?Just like you have numbers in base ... A: Questioner: jay Country: Gambia Category: Advanced Math Private: No Subject: fractional ... | |
| Equivalence relation | 6/23/2010 |
| Q: if A-{a,b,c} then the relation on A X A R={(a,a),(b,b),(c,c)} is a equvalance reletion.please ... A: Questioner: pratap Category: Advanced Math Private: No Subject: reletionif A-{a,b,c} then the ... | |
| Trigonometry | 6/19/2010 |
| Q: if a negative angle has measure x(degrees) between 0(degrees) and -60 (degrees) how can we ... A: Questioner: Renserie Umali Country: Philippines Category: Advanced Math Private: No Subject: ... | |
| analysis | 4/29/2010 |
| Q: Can you help me prove this problem. It's for my Basic Analysis Clas. Let f:R->R be a continuous ... A: Questioner: Alex Country: United States Category: Advanced Math Private: Yes Subject: ... | |
| Logarithmic equation | 3/20/2010 |
| Q: CONSIDER THE FOLLOWING SEQUENCES. WRITE DOWN THE NEXT TWO TERM OF EACH SEQUENCE log (base 2) 8, log ... A: Questioner: belle Country: Malaysia Category: Advanced Math Private: No Subject: mATHCONSIDER ... | |
| Mathematical Induction. | 3/19/2010 |
| Q: 1 squared+3 squared+5 squared+... +(2n-1)squared=(4ncube-n)/3 A: Questioner: khalil Country: Jamaica Category: Advanced Math Private: No Subject: induction1 ... | |
| Volume of a ring | 3/16/2010 |
| Q: Paul, How do I calcuate the volume of a ring with a triangular cross section (base =.5", Height =1") ... A: Questioner: Steve Country: United States Category: Advanced Math Private: No Subject: Volume of ... | |
| Graph sketching. | 3/16/2010 |
| Q: Find the x and y intercepts of : f(x)= 2x/ 3x+1 i have found the horizontal and vertical asymptotes ... A: Questioner: Jessica Country: United States Category: Advanced Math Private: Yes << fixed. ... | |
| Venn diagram | 3/9/2010 |
| Q: A group of 191 students of which 10 belong 10 chess club, law society and suas. 36 belong to chess ... A: This is a standard example of Venn Diagram questions. See these: ... | |
| Composition of functions | 3/8/2010 |
| Q: can we find the decomposition of composite functions e.g if fog(x)and gof(x)is given then can we ... A: Questioner: aqsa Country: Pakistan Category: Advanced Math Private: No Subject: calculuscan we ... | |
| Series convergence | 3/7/2010 |
| Q: For what values of q>0 is the following series convergent, and find its sum: 1 + q + (q^2)/2 + ... A: Questioner: Ray Country: United States Category: Advanced Math Private: No Subject: series ... | |
| Indeterminate form. | 3/5/2010 |
| Q: Limit x->0 x^x well by plugging in it's 0^0 undetermined using l'hopital d/dx limit x->0 x^x ... A: Questioner: hamad Country: Kuwait Category: Advanced Math Private: No Subject: undetermined ... | |
| Factoring | 3/5/2010 |
| Q: How do I factor out a (1-r) from (1-r^9)? It is for a question in geometric sequences. Chris A: Questioner: Chris Country: Canada Category: Advanced Math Private: Yes <<<< I CORRECTED THIS. ... | |
| Trigonometic limit | 3/4/2010 |
| Q: Without using L'Hopital rule limit x ->0 (tan(x) - sin(x))/x^3) well I already tried it with the ... A: Questioner: hamad Country: Kuwait Category: Advanced Math Private: No Subject: limitWithout ... | |
| Partial fractions | 3/3/2010 |
| Q: Resolve the following improper fraction into partial fractions: x^4 ------------------ (x^2 ... A: Questioner: Ilse Country: South Africa Category: Advanced Math Private: No Subject: Resolve ... | |
| Logarithmic equation | 3/2/2010 |
| Q: solve for x 1.logx8=3-logx125 (the x is the base) 2.3(102x+1)=5(102x-1) (the 2x is the exponent ... A: Questioner: lorato Country: South Africa Category: Advanced Math Private: No Subject: ... | |
| analysis | 3/1/2010 |
| Q: Sorry to have made these questions private, but if this site works and I really hope it does as I ... A: Questioner: Sarah Country: United States Category: Advanced Math Private: Yes Subject: 3 ... | |
| Simultaneous equations | 2/15/2010 |
| Q: I have the following two equations: c + A(d - c) = e + B(f - e) w + A(x - w) = y + B(z - y) And I ... A: Questioner: H Category: Advanced Math Private: No Subject: Re-arranging equationsHi, I have the ... | |
| Polynomial equations. | 2/15/2010 |
| Q: I have one problem I can't figure out. It is a "solving equations by factoring" question. The ... A: Questioner: JanaLee Country: United States Category: Advanced Math Private: No Subject: ... | |
| Complex numbers. | 2/15/2010 |
| Q: simplify (2-2i)^5 with de Moivres formula thank you in advance A: Questioner: Kamila Country: Sweden Category: Advanced Math Private: No Subject: complex ... | |
| Basic trigonometric functions | 2/9/2010 |
| Q: for these two problems, the biggest part that i need help on is drawing the picture... the ... A: Questioner: dillon Country: United States Category: Advanced Math Private: No Subject: trigfor ... | |
| Tough exponential equation | 2/8/2010 |
| Q: can you help me please. 4^(x+1.5) + 9^x = 6^(x+1) I can't figure out how to isolate x to solve the ... A: Questioner: Jeff Osmar Country: Canada Category: Advanced Math Private: No Subject: Tough ... | |
| Complex numbers. | 2/8/2010 |
| Q: I need to write out the following polynomial in the form p(z) = (z-z1)(z-z2)...(z-zn). (z^2) + ... A: Questioner: Mel Country: Canada Category: Advanced Math Private: No Subject: complex analysisHi, ... | |
| Vector algebra | 2/6/2010 |
| Q: 1) A man travelling southward at 15km/h observes that the wind appears to be coming from west. on ... A: Questioner: renz Country: Philippines Category: Advanced Math Private: No Subject: VECTOR1) A ... | |
| Probability of a subset. | 2/3/2010 |
| Q: would appreciate your input on the following matter: If one was to consider the case of a 5 number ... A: Questioner: Jimmy Country: Malta Category: Advanced Math Private: No Subject: Probability of ... | |
| Logarithmic equation | 1/31/2010 |
| Q: Solve for x over the set of real numbers: log base(4)of x + log base(x)of 32 = 19/6. I have ... A: Questioner: Steven Country: United States Category: Advanced Math Private: No Subject: Advanced ... | |
| Probability | 1/31/2010 |
| Q: A fair coin is tossed 7 times.What is the probability to get three tailes before a head is ... A: Questioner: vaishali Country: India Category: Advanced Math Private: No Subject: ProbabilityA ... | |
| Probability | 1/30/2010 |
| Q: A fair coin is tossed 7 times.What is the probability to get three tailes before a head is ... A: Questioner: vaishali Country: India Category: Advanced Math Private: No Subject: probabilityA ... | |
| Square roots | 1/29/2010 |
| Q: what is the 4th root of the number 900? how do you figure this out? A: Questioner: Heather Country: United States Category: Advanced Math Private: No Subject: ... | |
| Arithmetic series | 1/28/2010 |
| Q: 1.the sum of the first 5 terms of an arithmetic series is 35 and the sum of the next 5 terms is 160. ... A: Questioner: nargs Country: Australia Category: Advanced Math Private: No Subject: hi1.the sum of ... | |
| Rates | 1/18/2010 |
| Q: If two house painters, working at the same rate, can paint one small house in one day, one house ... A: Questioner: Kenneth Country: United States Category: Advanced Math Private: No Subject: RatesIf ... | |
| Annuity - Present or Future? | 1/16/2010 |
| Q: I am currently working on Finance Math in my functions course, but the problem is, I don't know how ... A: Questioner: Robert Country: Canada Category: Advanced Math Private: No Subject: Annuity - ... | |
| Linear programming | 1/15/2010 |
| Q: My name is Karen and I am currently taking Algebra 2. I have to take an exam but was absent when she ... A: Questioner: Karen Country: United States Category: Advanced Math Private: No Subject: feasible ... | |
| Function notation | 1/15/2010 |
| Q: Let g(x)=(x+3)/(√5x-1) Find and simplify 3 g(2) + 2[g(1)]^2 A: Questioner: Jon Country: United States Category: Advanced Math Private: No Subject: Algebra ... | |
| Trig identities | 1/14/2010 |
| Q: How to calculate the area of triangle when Triangle ABC, a=6 b=3 and Cos(A-B)=4/5. A: Questioner: Ashwin Country: India Category: Advanced Math Private: No Subject: MathematicsHow to ... | |
| Multipart Function | 1/10/2010 |
| Q: I am studying for my Pre-Cal midterm and need help with this problem. For problem B I have to: graph ... A: Country: United States Category: Advanced Math Private: No Subject: Need help with Pre-Cal ... | |
| Basic set properties. | 1/8/2010 |
| Q: I have found the ollowing questions in my algebra book, which I did't understand well. Please ... A: Questioner: mahima Country: India Category: Advanced Math Private: No Subject: basicDear Sir, I ... | |
| Trig functions | 1/5/2010 |
| Q: First question resubmitted slightly wrong. Determine the equation of the tangent line to the ... A: Questioner: Carmine Country: United States Category: Advanced Math Private: Yes Subject: Trig ... | |
| Trig functions | 1/2/2010 |
| Q: First question resubmitted slightly wrong. Determine the equation of the tangent line to the ... A: Questioner: Carmine Country: Canada Category: Advanced Math Private: No Subject: Advanced ... | |
| math study | 12/29/2009 |
| Q: after studying the following amount of math what further and in what order should I study advanced ... A: Wow! Anyway, I suggest that you want to: 1. Complete Calculus -- partial derivatives, vectors, ... | |
| Distance between lines. | 12/25/2009 |
| Q: I've the following two lines: L(1): z=y-c; L(2): z=c-x. My question is, how to find the shortest ... A: Questioner: grull Country: Hungary Category: Advanced Math Private: Yes Subject: skew ... | |
| Conditional probability | 12/25/2009 |
| Q: Setswana Nosks estimates that the probability its lathe tool is properly adjusted is 0.8. When the ... A: Questioner: Liza Country: Puerto Rico Category: Advanced Math Private: No Subject: ... | |
| Maximum-minimum problem | 12/22/2009 |
| Q: The question goes: A rectangular box open at the top has a square base of side x metres. The total ... A: Questioner: Logice Country: Australia Category: Advanced Math Private: No Subject: d in ... | |
| Matrix | 12/21/2009 |
| Q: I have to develop a c program which can balance a chemical equation by the method of 'Generalized ... A: I think your program could work like this: for k = 1 to n check that A[k,k] is not zero. ... | |
| Cost and revenue. | 12/17/2009 |
| Q: Need help. A store can purchase T-shirts for $7 each. It has a fixed cost of $2,500.Each T-shirt is ... A: Questioner: KJ Country: United States Category: Advanced Math Private: Yes Subject: ... | |
| Exponential growth and decay | 12/15/2009 |
| Q: Initially, there are 83 kg of a radioactivematerial. This material decays with a half-life of 16 ... A: Questioner: Katharine Category: Advanced Math Private: No Subject: algrebra twoInitially, ... | |
| Logarithm and exponent properties. | 12/14/2009 |
| Q: solve for x: 1/log_3(x) + 1/log_6(x) + 1/log_8(x) + 1/log_9(x)=4 I used the change of base formula ... A: Questioner: Katharine Country: United States Category: Advanced Math Private: No Subject: ... | |
| Trigonometic equations | 12/13/2009 |
| Q: Q#1 Directions: Solve the equation exactly over the interval [0,360) sin ^2 θ - cos ^2 θ = ... A: If you don't like factoring sin^2(x), write S for sin x, as I often do. Yes, No.4 was a bit ... | |
| Helical path | 12/11/2009 |
| Q: I have a candy cane that had a diameter of .5inches and height of 6.0". I want to wrap a stripe ... A: Questioner: Fred Private: No Subject:I have a candy cane that had a diameter of .5inches and ... | |
| Trigonometic equations | 12/11/2009 |
| Q: Q#1 Directions: Solve the equation exactly over the interval [0,360) sin ^2 θ - cos ^2 θ = ... A: Questioner: dillon Country: United States Category: Advanced Math Private: No Subject: trigQ#1 ... | |
| NOT Science of an Intelligent Universe | 12/11/2009 |
| Q: Greetings Mr Klarreich, My work on www.ascensionq.20fr.com is religion and science based and is a ... A: Answer: Total looniness. -------------------------------- Questioner: Larry Thomas Country: ... | |
| Exponential equation | 12/10/2009 |
| Q: Fruit flies are placed in a half pink milk bottle with a banana(for food) and yeast plants(for food ... A: Questioner: Delmy Country: United States Category: Advanced Math Private: No Subject: ... | |
| Distributive property | 12/6/2009 |
| Q: How can I prove or come up with a lesson plan on the distributive property. I need to clearly show ... A: Questioner: Gerald Country: United States Category: Advanced Math Private: No Subject: ... | |
| Analysis | 12/5/2009 |
| Q: Suppose that f is intergrable on [a,b] and there exist K>o such that f(x)>= K for all x in [a,b]. ... A: Questioner: Tammy Country: United States Category: Advanced Math Private: No Subject: ... | |
| Triangle | 12/4/2009 |
| Q: In sailing, you can find the distance to any object on land (X) by: 1. measuring the angle created ... A: Questioner: Dustin Country: United States Category: Advanced Math Private: No Subject: ... | |
| Riemann Integrals | 12/4/2009 |
| Q: I am not sure how to start this one. Suppose that f and g are Riemann integrable on [a,b] and are ... A: Questioner: Sam Country: United States Category: Advanced Math Private: No Subject: Riemann ... | |
| Riemann sums | 12/4/2009 |
| Q: I am confused on this problem: Consider f(x)=X^2 on [0,2] and a particular P given by P= {0, 2/n, ... A: Questioner: Sally Country: United States Category: Advanced Math Private: No Subject: U(P,f) and ... | |
| algebra factorial problem | 12/2/2009 |
| Q: y^2=x! + 24 x,y are natural numbers y^2 = x! +4! y^2=(x(x-1)(x-2)...(x-(x-1))+4*3*2*1 y = sqrt( ... A: Questioner: hamad Country: Kuwait Category: Advanced Math Private: No Subject: algebra factorial ... | |
| General math | 12/2/2009 |
| Q: I am mahima, housewife. I am very much interested in learning math. I have the following doubts. If ... A: Questioner: mahima Country: India Category: Advanced Math Private: Yes Subject: mathematicsDear ... | |
| Trigonometric identity | 12/1/2009 |
| Q: prove the identity or sin^2t-cos^2t-tan^2t=2sin^2t-2sin^4t-1/(divided by)1-sin^2t A: Questioner: brian Country: Canada Category: Advanced Math Private: Yes << Don't do this. Subject: ... | |
| Venn Diagram | 11/29/2009 |
| Q: A and B and C are non empty sets and E is the universal set. Given that: n(AnBnC)=3, n(A)=15, ... A: Questioner: Edwin Country: Poland Category: Advanced Math Private: No Subject: Set theoryA and B ... | |
| area of circle inscribed on a sphere | 11/28/2009 |
| Q: I am not a student. So this is not from a book or a particular study of math. Just a question a ... A: Questioner: Anne Country: United States Category: Advanced Math Private: No Subject: area of ... | |
| Conditional Probability | 11/27/2009 |
| Q: I just came across your profile on allexperts.com. I have been struggling with a probability ... A: Questioner: Mike Country: India Category: Advanced Math Private: No Subject: Conditional ... | |
| Third degree equation | 11/26/2009 |
| Q: My problem is the following equation: 8x^3-6x+1=0 Coud you help me to solve it? Thank you ... A: Questioner: grull Country: Hungary Category: Advanced Math Private: Yes Subject: Third degree ... | |
| Investment | 11/26/2009 |
| Q: 1. Find the ordinary interest of 2,100 pesos for 65 days at 5 and 1/4% simple interest. 2. Find ... A: Questioner: Tristan Country: Philippines Category: Advanced Math Private: No Subject: ... | |
| Trigonometric identity | 11/25/2009 |
| Q: prove cos7A/cosA=2cos6A-2cos4A+2cos2A-1 A: Questioner: dolly Country: India Category: Advanced Math Private: No Subject: trignometryprove ... | |
| Linear equations | 11/24/2009 |
| Q: Question : For what values of A and B , the simultaneous equations x + y + z = 6 x + 2y + 3z = 10 x ... A: Questioner: varunnayudu Country: India Category: Advanced Math Private: Yes << changed. ... | |
| Third degree equation | 11/23/2009 |
| Q: My problem is the following equation: 8x^3-6x+1=0 Coud you help me to solve it? Thank you A: Questioner: grull Country: Hungary Category: Advanced Math Subject: third degrees equationHello! ... | |
| Logical Maths | 11/23/2009 |
| Q: When two positive or negative directed numbers are multiplied then answer is positive, e.g (+3)x(+7) ... A: Questioner: RashidWhen two positive or negative directed numbers are multiplied then answer is ... | |
| Homogeneous functions, L’Hôpital’s rule | 11/22/2009 |
| Q: please help me how to solve following problems. Thanks:) 1. Determine whether the following ... A: Questioner: Geli Country: United States Category: Advanced Math Private: No Subject: Homogenous, ... | |
| Integral, maximum or minimum | 11/22/2009 |
| Q: please help me with the following problems. Thank you so much. a. Use integration by parts to find ... A: Questioner: Geli Country: United States Category: Advanced Math Private: No Subject: Integral, ... | |
| Logarithm and exponent properties. | 11/21/2009 |
| Q: The problem is "Rewrite each expression as a sum or difference of multiples of logs: log2(square ... A: Questioner: Brad Country: United States Category: Advanced Math Private: No Subject: Helping ... | |
| Graphs of Trigonometric Functions | 11/20/2009 |
| Q: Problem #2 - I'm having problems doing this in reverse. Could use some help. Thanks! A: Questioner: Jill Country: United States Category: Advanced Math Private: No Subject: ... | |
| Taylor series and derivative | 11/20/2009 |
| Q: 1. Pls help me with the Taylor series expansion around x=2 of y=LOG5 [3^(x+1)] 2. How to solve the ... A: Questioner: Geli Country: United States Category: Advanced Math Private: No Subject: Taylor ... | |
| Maxima or minima in space | 11/19/2009 |
| Q: Please help me to solve this problem. Thank you. The function: z=(x-2)^4+(y-3)^4. How to find the ... A: Questioner: Geli Country: United States Category: Advanced Math Private: No Subject: Maxima or ... | |
| Intermediate Value Theorem | 11/17/2009 |
| Q: Suppose that the function f is continuous on [a; b], x1 and x2 are in [a; b], and k1 and k2 are ... A: Questioner: Sam Country: United States Category: Advanced Math Private: No Subject: Prove there ... | |
| Exponential function | 11/17/2009 |
| Q: I am not exactly sure how to start this prove since it seems so obvious. It is: Prove that if f(x)= ... A: Questioner: Sally Country: United States Category: Advanced Math Private: No Subject: e^xHi, I ... | |
| Subsets | 11/16/2009 |
| Q: Consider the following variables: Z A1 ... A: Questioner: Ryan Country: United States Category: Advanced Math Private: No Subject: Easy ... | |
| Graph of a parabola. | 11/16/2009 |
| Q: I have two rectangles, one inside of the other. The first one has dimensions of x+9 and x+8. The ... A: Questioner: Katharine Country: United States Category: Advanced Math Private: No Subject: ... | |
| Epsilon-delta proof(from pool) | 10/28/2009 |
| Q: Can you help me with an epsilon delta proof of two variables? I need to prove the limit of cos(xy) ... A: Can you help me with an epsilon delta proof of two variables? I need to prove the limit of cos(xy) ... | |
| Expectation | 10/13/2009 |
| Q: If a 28 year old pays $207.00 for a one year life insurance policy worth $70K and there is a .9994 ... A: Questioner: Nancy Country: United States Category: Advanced Math Private: Yes Subject: ... | |
| Continuous functions | 10/12/2009 |
| Q: I need to prove that there is an x-intercept on the interval [-1,1] for the equation P(x)=x^3+4x-1. ... A: Questioner: Anne Marie Country: United States Category: Advanced Math Private: No Subject: ... | |
| Equation of a circle | 10/12/2009 |
| Q: Hey, I'm in first year calculus in university and it seems my prof expects us to know the xy formula ... A: Questioner: Gordon Country: Canada Category: Advanced Math Private: No Subject: circle ... | |
| Telescoping sum | 10/10/2009 |
| Q: calculate the sum of 1 -2 +3 -4 +5 -6 +7 -8........+19 -20 A: Questioner: kevin Country: United Arab Emirates Category: Advanced Mathcalculate the sum of 1 -2 ... | |
| Basic algebra | 10/9/2009 |
| Q: I am having major trouble with the solutions hope you can help me. Please take a look at my ... A: Questioner: Daveena Harris Country: United States Category: Advanced Math Private: Yes Subject: ... | |
| Basic algebra and trig | 10/8/2009 |
| Q: what are the equations that you need to solve a parabola? and my trig question.... A satellite ... A: yeah, i guess you can't really solve a parabola. i meant how do you find the vertex for parabolas. ... | |
| Substitution | 10/8/2009 |
| Q: find the value of y when x=7 in the equation y=3x2-8x A: Questioner: myra Country: United States Category: Advanced Math Private: No Subject: ... | |
| Function notation | 10/7/2009 |
| Q: Im not sure if i have this math problem right and there are one or two i don't understand how to do ... A: Questioner: laurie Country: United States Category: Advanced Math Private: No Subject: college ... | |
| Percent mixture problem | 10/7/2009 |
| Q: I am looking for some clarification on a certain word problem shown below. The course I am in is ... A: Questioner: Dane Country: Canada Category: Advanced Math Private: No Subject: Word ProblemHi ... | |
| Basic algebra and trig | 10/6/2009 |
| Q: what are the equations that you need to solve a parabola? and my trig question.... A satellite ... A: Questioner: dillon Country: United States Category: Advanced Math Private: No Subject: basic ... | |
| double integrals | 10/6/2009 |
| Q: evaluate the double integral of (1+x+cos(x^2+y^2)) dxdy with the area of integration defined by ... A: Questioner: Olivia Category: Advanced Math Private: no Subject: double integralsevaluate ... | |
| Trigonometric functions | 10/5/2009 |
| Q: Explain why the period of the y = tan(theta) and y = cot(theta) is only 180 degrees instead of 360 ... A: Questioner: Walton Country: United States Category: Advanced MathExplain why the period of the y = ... | |
| Dimension of a space - corrected | 10/3/2009 |
| Q: What is the dimension of the vector space of 2 x 2 symmetric matrices? of skew-symmetric matrices? ... A: Questioner: Sombra Country: United States Category: Advanced MathWhat is the dimension of the ... | |
| Trigonometric functions | 10/2/2009 |
| Q: The problem starts with a circle, like the unit circle, that has a point in the first qudrant on the ... A: Questioner: Margaret Country: United States Category: Advanced Math Private: No Subject: trigThe ... | |
| Differential equation | 9/30/2009 |
| Q: in study of population dynamics, one of the famous models for growing but bounded population is ... A: Questioner: fadzlan Country: Malaysia Category: Advanced Math Private: No Subject: engineering ... | |
| abstract algebra | 9/29/2009 |
| Q: This question is from the section on binary operations. It asks that if the set S has exactly one ... A: Questioner: Adam Private: no Subject:This question is from the section on binary operations. It ... | |
| Kids Math | 9/29/2009 |
| Q: Trying to help my kid with math but can't remember how to bring exponents over (-y)^-3=1/1000 A: Questioner: Rick Country: United States Category: Advanced Math Private: No Subject: Kids ... | |
| Probability | 9/26/2009 |
| Q: Three cards are drawn from a standard deck of 52 cards. a. What is the expected number of aces? b. ... A: Questioner: John Country: United States Category: Advanced Math Private: Yes Subject: ... | |
| Geometric sequence | 9/26/2009 |
| Q: (e) the sum to infinity of a G.P series is R. The sum to infinity of the squares of the terms is 2R. ... A: Questioner: Edwin Country: Norway Category: Advanced Math Private: No Subject: Math(e) the sum ... | |
| angular velocity conversion | 9/25/2009 |
| Q: A propeller on a wind generator rotates 60 degrees/second, I need to find the angular velocity in ... A: Questioner: Rob Country: Canada Category: Advanced Math Private: No Subject: angular velocity ... | |
| doing a paper for me -- not | 9/24/2009 |
| Q: Do you take pay for doing paper?please repy and d process A: Questioner: betty Country: Bahamas Category: Advanced Math Private: No Subject: doing a paper ... | |
| Inverses trigonometric functions | 9/24/2009 |
| Q: Show that: y= 4x^2 (1-x^2) if sin^-1 y= 2cos^-1 x A: Questioner: Edwin Country: Norway Category: Advanced Math Private: No Subject: MathShow that: y= ... | |
| Derivatives - applications. | 9/24/2009 |
| Q: just wondering if you could help me out with this question. Hopefully it wont take up alot of your ... A: Questioner: Greg Country: Australia Category: Advanced Math Private: No Subject: finding rate of ... | |
| Arithmetic sequences | 9/23/2009 |
| Q: (f) if S1, S2, S3 be the sum of n, 2n, 3n terms respectively of an A.P, prove that S3= 3(S2-S1). (S1 ... A: Questioner: Edwin Country: Norway Category: Advanced Math Private: No Subject: Advance math>A.P ... | |
| Polynomial equations | 9/22/2009 |
| Q: Solve for x. x(x+1)^2*(x+2)= 72 A: Questioner: Edwin Country: Norway Category: Advanced Math Private: No Subject: Advance ... | |
| Complex numbers - polar form | 9/22/2009 |
| Q: Determine the roots of the square root of 1-1,73j giving the results in the form rectangular and in ... A: Questioner: Lorato Lubidla Country: South Africa Category: Advanced Math Private: Yes Subject: ... | |
| Probability | 9/21/2009 |
| Q: In how many ways can a sample of 3 oranges be taken from a bag of a dozen oranges? I got this: 12 * ... A: Questioner: John Country: United States Category: Advanced Math Private: Yes Subject: ... | |
| Linear Programming | 9/21/2009 |
| Q: Max 1A - 2B s.t. -4A + 3B <= 3 1A - 1B <= 3 A,B => 0 1. graph feasible region 2. is the feasible ... A: Questioner: Jen Country: United States Category: Advanced Math Private: No Subject: Linear ... | |
| Basic area | 9/20/2009 |
| Q: A rectangle that has an area of 357 square inches is 17 inches wide. How long is the rectangle? A: Questioner: Joshua Country: Canada Category: Advanced Math Private: Yes Subject: MathA rectangle ... | |
| Permutations and probabilities | 9/20/2009 |
| Q: I am having trouble figuring out which "formula" to use to get to 3 of my answers. Our professor ... A: Questioner: Lorri Country: United States Category: Advanced Math Private: No Subject: Need help ... | |
| Set operations - basic | 9/18/2009 |
| Q: Which statement is false? a ∈ {a, b, c} Ø ⊂ {a, b, c} Ø ⊆ {a, ... A: Questioner: Donna Country: United States Category: Advanced Math Private: Yes << No. I change ... | |
| Law of Sines and Cosines | 9/18/2009 |
| Q: please help me. my qeustion is this- in quadrilateral ABCD, AB is 2 units long, BC is 4 units long, ... A: Questioner: marcus Country: United States Category: Advanced Math Private: Yes Subject: ... | |
| Trigonometric Identities | 9/17/2009 |
| Q: Can you help me to solve this out? tan ( sec^-1 (8) ) = ? I know we should put a logarithm ... A: Questioner: Alvin Country: United States Category: Advanced Math Private: No Subject: help me ... | |
| Statistics/Functions | 9/16/2009 |
| Q: I am doing what is known as a Math Portfolio from the IB Programme. If you go to ... A: I found the document. The graph (see attached, using Excel) looks like it might be a cubic ... | |
| Set operations | 9/16/2009 |
| Q: Let A,B be a nonempty proper subsets of R and x not in A. Prove ((-∞,x)U(x,∞))∩A=A A: Questioner: Stephanie Country: United States Category: Advanced Math Private: No Subject: ... | |
| Verbal problems in algebra | 9/14/2009 |
| Q: the sum of three consecutive even numbers is 48. what are the smallest of these numbers? A: Questioner: janine Country: United States Category: Advanced Math Private: No Subject: ... | |
| Proof by Contradiction | 9/14/2009 |
| Q: If 'x' is a rational number not equal to 0, 'y' is an irrational number, and x*y=z, then z is an ... A: Questioner: Abby Country: United States Category: Advanced Math Private: No Subject: Math Proof ... | |
| Trigonometric equations | 9/13/2009 |
| Q: I am really having trouble understanding how to find exact solutions over intervals? The one I am ... A: Questioner: Patricia Country: United States Category: Advanced Math Private: No Subject: Exact ... | |
| Trigonometric equations | 9/11/2009 |
| Q: Find all values of θ in radians with -2pi<θ<2pi such that sin(θ) = -1 A: Questioner: cshel Country: United States Category: Advanced Math Private: No Subject: ... | |
| Trigonometric Identities | 9/10/2009 |
| Q: prove that (sinA.sin2A+sin3A.sinA6A)/(sinA.cos2A+sin3A.cos6A)=5tanA ... A: Questioner: pratap Country: India Category: Advanced Math Private: No Subject: mathprove that ... | |
| Fallacies -- Mathematical | 9/8/2009 |
| Q: what is wrong in this problem (all the rules are followed according to the rules of equality) ... A: Questioner: Lorena Country: United States Category: Advanced Math Private: Yes Subject: Rules of ... | |
| Simultaneous Equations | 9/7/2009 |
| Q: What are the general conditions for determining if a given system of simultaneous equations with two ... A: Questioner: mwenya Country: Zambia Category: Advanced Math Private: No Subject: Graphing ... | |
| Exponent rules | 9/5/2009 |
| Q: What is 2 cubed 2 times x 3 cubed 3? Is it 108? A: Questioner: Tabatha Country: United States Category: Advanced Math Private: No Subject: Cubed ... | |
| Means | 9/4/2009 |
| Q: How would i begin to solve this: The arithmetic mean of 2 numbers is 12. their geometric mean is 8. ... A: Questioner: miranda Country: United States Category: Advanced Math Private: No Subject: ... | |
| Inequalities proof | 9/3/2009 |
| Q: Let a,b E R. Prove that if 0<a<1 and b=1-(1-a)^(1/2), then 0<b<a. Also prove that if 3<a<5 and ... A: Questioner: Cori Country: United States Category: Advanced Math Private: No Subject: ProofsLet ... | |
| Basic rate and time. | 9/2/2009 |
| Q: When i did this problem i got the answer 33n/3000n which was wrong. the problem is A College ... A: Questioner: drew Country: United States Category: Advanced Math Private: No Subject: abstract ... | |
| Trigonometric equation | 9/2/2009 |
| Q: Solve for the indicated variable (listed after the semicolon). Restrict all answers to the interval ... A: Questioner: Sue Country: United States Category: Advanced Math Private: No Subject: ... | |
| Basic equations. | 9/1/2009 |
| Q: I'm not even sure what kind of problem this is, but it was on my SAT prep. This is theSolve. Carl ... A: Questioner: kellly Country: United States Category: Advanced Math Private: No Subject: Math ... | |
| Trigonometric Identities | 9/1/2009 |
| Q: Simplify the following without a calculator: 1) cos(theta/2)sin(3theta/2) 2) sin(pi/5) - ... A: Questioner: Sue Lee Country: United States Category: Advanced Math Private: No Subject: ... | |
| Quadratic equation | 8/30/2009 |
| Q: .hopefully you can help me to answer such questions..im doing Ib..n found its higher level math ... A: Questioner: belle Private: no Subject:sorry for the mistake...I've corrected it h(x)=|1/5x3 -5x + ... | |
| Vectors | 8/30/2009 |
| Q: Study CIE 9709 "A LEVEL" MATHEMATICS & vectors topic. The points A & B have position ... A: Questioner: Warm Country: China Category: Advanced Math Private: No Subject: VectorsStudy CIE ... | |
| Quadratic equation | 8/29/2009 |
| Q: .hopefully you can help me to answer such questions..im doing Ib..n found its higher level math ... A: Questioner: belle Country: Malaysia Category: Advanced Math Private: No Subject: higher level ... | |
| Permutation/even distribution | 8/28/2009 |
| Q: I'd like to schedule and evening distribute play between 12 tennis players, playing 4 at a time ... A: Questioner: Charlie Country: United States Category: Advanced Math Private: No Subject: ... | |
| Linear programming | 8/28/2009 |
| Q: Peach Inc. is producing very popular MP3 players. Currently, the two models produced are the xPod ... A: Questioner: Thao Country: Vietnam Category: Advanced Math Private: No Subject: Linear ... | |
| Trigonometric functions | 8/27/2009 |
| Q: My question is this: How many real solutions are there to the equation sin(40x) = x ? and what does ... A: Questioner: Xue Ting Country: Singapore Category: Advanced Math Private: No Subject: ... | |
| Trigonometric functions | 8/27/2009 |
| Q: what are the six trigonometric functions of an angle used for? Sine, cosine, tangent, cotangent, ... A: Questioner: dillon Country: United States Category: Advanced Math Private: No Subject: trigwhat ... | |
| Trigonometric functions | 8/26/2009 |
| Q: My question is this: How many real solutions are there to the equation sin(40x) = x ? and what does ... A: Questioner: Xue Ting Country: Singapore Category: Advanced Math Private: No Subject: No. of real ... | |
| Similar Triangles | 8/26/2009 |
| Q: this is probaly really basic stuff...i just didn't take any notes on how to do these problems can ... A: Questioner: dillon Country: United States Category: Advanced Math Private: No Subject: ... | |
| Mechanics | 8/25/2009 |
| Q: Studying CIE A LEVEL MATHEMATICS, topic is on forces & equilibrium & Newton's Laws of Motion. A ring ... A: Questioner: Warm Country: China Category: Advanced Math Private: No Subject: MechanicsStudying ... | |
| Angle measure | 8/25/2009 |
| Q: this is probaly really basic stuff...i just didn't take any notes on how to do these problems can ... A: Questioner: dillon Country: United States Category: Advanced Math Private: No Subject: trigthis ... | |
| Basic equations. | 8/25/2009 |
| Q: I don't know where to begin. I do know how to write linear equations if given more information. I ... A: Questioner: Dedra Country: United States Category: Advanced Math Private: No Subject: FINITE ... | |
| Vectors in the plane. | 8/24/2009 |
| Q: three forces with magnitudes 70 pounds, 40 pounds, and 60 pounds act on an object at angles of -30 ... A: Questioner: Nelson Country: United States Category: Advanced Math Private: No Subject: Pre-Cal ... | |
| Vectors in the plane. | 8/23/2009 |
| Q: find the component form of v given its magnitude and the angle it makes with the positive x-axis. ... A: Questioner: Justin Country: United States Category: Advanced Math Private: No Subject: Pre-Cal ... | |
| Polynomial Division | 8/22/2009 |
| Q: Divide 3x^3+2x^2+4x-1 by x^2+1. What is the quotient? A: Questioner: Zarak Country: United States Category: Advanced Math Private: No Subject: Polynomial ... | |
| Arithmetic sequences | 8/22/2009 |
| Q: the third and fourth terms of a sequence are 101 and 83. If the first diffrences are constant, find ... A: Questioner: talia Country: United States Category: Advanced Math Private: No Subject: algebra ... | |
| Permutations | 8/21/2009 |
| Q: We have received an assignment on card riffling in Grade 11 maths C. We are asked, among other ... A: Questioner: Iulia Country: Australia Category: Advanced Math Private: No Subject: Modulo ... | |
| Right triangle geometry. | 8/19/2009 |
| Q: a plane flies 500 km with a bearing of N 44 degrees W from B to C. The plane then flies 720 km from ... A: Questioner: T Country: United States Category: Advanced Math Private: No Subject: Pre-cal ... | |
| Graph sketching. | 8/15/2009 |
| Q: I have to find the stationary points of g(x)=cosxexp(2/3sinx) (0<x<2pi) and then use the first ... A: Questioner: Jo Country: United Kingdom Category: Advanced Math Private: No Subject: Advanced ... | |
| Trigonometric Identities | 8/14/2009 |
| Q: Verify the identity. tan(2 tan^-1 x) - 2 tan (tan^-1 x + tan^-1 x^3 A: Questioner: Cherry Country: Trinidad and Tobago Category: Advanced Math Private: No Subject: Re: ... | |
| Quadratic equation | 8/13/2009 |
| Q: x(50-1.25x)=160+10x I need help understanding how to solve this! thanks A: Questioner: Caina Country: Canada Category: Advanced Math Private: No Subject: ... | |
| Exponential Decay. | 8/10/2009 |
| Q: 1.what is exponential equations and why is it important? :) 2.how to show or prove that in y=y-knot ... A: Questioner: ain^^ Country: Philippines Category: Advanced Math Private: No Subject: Exponential ... | |
| Exponential Decay. | 8/7/2009 |
| Q: 1.what is exponential equations and why is it important? :) 2.how to show or prove that in y=y-knot ... A: Questioner: ain^^ Country: Malaysia Category: Advanced Math Private: No Subject: ... | |
| Trigonometric Identities | 8/7/2009 |
| Q: Verify the identity: Sin 2x/Sin x - Cos 2x/Cos x = Sec x When x = Theta ... A: Questioner: Cherry Country: Trinidad and Tobago Category: Advanced Math Private: No Subject: ... | |
| Trigonometric Identities | 8/6/2009 |
| Q: Verify the identity: Sin 2x/Sin x - Cos 2x/Cos x = Sec x When x = Theta A: Questioner: Cherry Country: Trinidad and Tobago Category: Advanced Math Private: No Subject: Re: ... | |
| Trigonometric Identities | 8/6/2009 |
| Q: Cos 2x = Cot2 x -1/Cot2 x + 1 ANSWER: what is the question? ---------- FOLLOW-UP ----------To ... A: Questioner: Cherry Country: Trinidad and Tobago Category: Advanced Math Private: No Subject: ... | |
| Trigonometric Identities | 8/5/2009 |
| Q: Cos 2x = Cot2 x -1/Cot2 x + 1 ANSWER: what is the question? ---------- FOLLOW-UP ----------To ... A: Questioner: Cherry Country: Trinidad and Tobago Category: Advanced Math Private: No Subject: ... | |
| Basic derivative applications | 8/4/2009 |
| Q: ) use the composite rule to differentiate the function f(x)=exp(2/3*sinx) note exp=e^x 2) use the ... A: Questioner: jaymin patel Country: United Kingdom Category: Advanced Math Private: No Subject: ... | |
| Trigonometric functions | 8/3/2009 |
| Q: have 6 statements and i have to choose the option that is true- but trig is always my weak point and ... A: What do you mean by 'an option'? Do you mean to just decide true or false for each one? If so, I ... | |
| Trigonometric functions | 8/3/2009 |
| Q: have 6 statements and i have to choose the option that is true- but trig is always my weak point ... A: Questioner: jay Country: United Kingdom Category: Advanced Math Private: No Subject: mathshave 6 ... | |
| Growth and decay. | 8/2/2009 |
| Q: The half life of polonium-210 is 138.4 days. How many milligrams of polonium-210 remain after 415.2 ... A: Questioner: Lucie Thompson Country: United States Category: Advanced Math Private: No Subject: ... | |
| Polynomial equations | 8/1/2009 |
| Q: USE dESCRATES RULE TO GIVE THE POSSIBLE COMBINATIONS OF POSITIVE,NEGATIVE,AND IMAGINARYZEROS OF THE ... A: Questioner: AMY Country: Saudi Arabia Category: Advanced Math Private: Yes << Changed. Subject: ... | |
| Trigonometric equation | 8/1/2009 |
| Q: Solve Cos 2A = 0 on the interval o less than or equal to A i sless than or equal to 2pi MY work; ... A: Questioner: Raj Country: United States Category: Advanced Math Private: No Subject: Exact Value ... | |
| Divisibility | 7/31/2009 |
| Q: I have question in number theory but all experts are on vacation , I thought you may help me in this ... A: Questioner: Mike Country: United States Category: Advanced Math Private: No Subject: MathHi , I ... | |
| Compound Interest | 7/29/2009 |
| Q: Mr. Desai has decided to deposit Rs. 200,000 in the bank annually. If the bank has a policy of ... A: 1. The first $1 grows by a factor of e^.08 each year. So multiply: e^.08 * e^.08 2. The second ... | |
| Compound Interest | 7/29/2009 |
| Q: Mr. Desai has decided to deposit Rs. 200,000 in the bank annually. If the bank has a policy of ... A: Questioner: Kapil Country: India Category: Advanced Math Private: No Subject: plz replyMr. Desai ... | |
| Function/Domain/Range | 7/28/2009 |
| Q: When approaching a domain/range question, it is difficult to determine the domain/range when there ... A: Questioner: Kilonu Country: United States Category: Advanced Math Private: No Subject: ... | |
| Polar form. | 7/28/2009 |
| Q: the rectangular coordiantes of a point are given. Find two pairs of polar coordiantes, one with r>0 ... A: Questioner: Pratap Country: United States Category: Advanced Math Private: No Subject: ... | |
| Trigonometric functions | 7/28/2009 |
| Q: what is the domain of f(x)=secx A: Questioner: bob Country: United States Category: Advanced Math Private: Yes Subject: ap ... | |
| Area and arc length | 7/27/2009 |
| Q: Find a continuous, non negative function that has finite area on [0,1] and an infinite arc length on ... A: Questioner: Sharon Country: United States Category: Advanced Math Private: No Subject: Calc ... | |
| Complex numbers - polar form | 7/26/2009 |
| Q: I'm studying CIE "A Level" Mathematics and the topic Complex number. I know the formula for modulus ... A: Questioner: Warm Country: China Category: Advanced Math Private: No Subject: Complex no.I'm ... | |
| Integer arithmetic. | 7/24/2009 |
| Q: Let x and y be positive integers such that x^2 + 3x +y^2 = 404. What is the value of x + y^3? Find ... A: Questioner: Tim Country: Australia Category: Advanced Math Private: No Subject: Problem using MS ... | |
| Parametric equations | 7/24/2009 |
| Q: Let Ps=(Xs,Ys) be the point on the unit circle s counterclockwise units away from the point (1,0). ... A: Questioner: Sharon Country: United States Category: Advanced Math Private: No Subject: Math 2Let ... | |
| Translations | 7/21/2009 |
| Q: I have tried this problem and achieved multiple answers which are not correct. Given the Function ... A: Questioner: drew Country: United States Category: Advanced Math Subject: functionsI have ... | |
| trigonometric identities | 7/16/2009 |
| Q: prove the following:square secantx + square cosecantx = square secant *square cosecantx A: Questioner: aiza Country: Philippines Category: Advanced Math Private: No Subject: ... | |
| Similar Triangles | 7/12/2009 |
| Q: I've got a maths problem: Let ABC be a triangle. Two straight lines which are parallel to the side ... A: Questioner: Thomas Country: Australia Category: Advanced Math Private: No Subject: ... | |
| Permutations | 7/10/2009 |
| Q: By using the digits 3,5,5,6,7,7,9 any number of times how many numbers can be formed having four ... A: You are not stating it clearly, so I will assume you mean: By using the digits 3,5,5,6,7,7,9 how ... | |
| Number theory, divisibility | 7/10/2009 |
| Q: My question is: A positive integer n is such that numbers 2n+1 and 3n+1 are perfect squares. Prove ... A: Questioner: Ben Country: Australia Category: Advanced Math Private: No Subject: Maths ... | |
| Polynomial equations | 7/8/2009 |
| Q: Use descartes rule of signs and the rational zeros theorom to find all the real zeros, then use the ... A: Why did you not try -3? Yes, I know you tried it and it worked for your first division, but it ... | |
| Finding slope of a graph | 7/7/2009 |
| Q: Question asked: May I know how do I find the theoretical slope of y=3a+b/(c+x) when a, b and c are ... A: Questioner: Ee Ling Country: Singapore Category: Advanced Math Private: No Subject: ... | |
| Differential equation | 7/5/2009 |
| Q: How can i find the general solution to the First Order DE as dy/dx = 2y + x[(e^(3x) - e^(2x)]. I ... A: Questioner: jim Country: United States Category: Advanced Math Private: No Subject: ... | |
| Equation of a line in space, | 7/5/2009 |
| Q: I had try already to do this question & i know how to do it using my teacher method by forming two ... A: OK, it could go like this: ............. CONTINUATION.............. OK, now we need a direction ... | |
| Linear programming | 7/4/2009 |
| Q: My name is Jessica and I live in Salt Lake City, UT. I go to an online school from which I can get ... A: Questioner: Jessica Country: United States Category: Advanced Math Private: No Subject: ... | |
| Normal vector. | 7/4/2009 |
| Q: I had try already to do this question & i know how to do it using my teacher method by forming two ... A: Country: China Category: Advanced Math Private: No Subject: VectorI had try already to do ... | |
| Interest | 7/2/2009 |
| Q: At simple interest, if an investor has $1000.00 to invest in multiple accounts at different ... A: Questioner: Kenneth Country: United States Category: Advanced Math Private: No Subject: ... | |
| Graph sketching. | 7/2/2009 |
| Q: I have been some trouble lately finding with my precalulus- it is just confusing..please can you ... A: Questioner: Rajah Country: United States Category: Advanced Math Private: No Subject: ... | |
| Interest | 7/1/2009 |
| Q: At simple interest, if an investor has $1000.00 to invest in multiple accounts at different ... A: Questioner: Kenneth Country: United States Category: Advanced Math Private: No Subject: ... | |
| Triangle inequality | 6/28/2009 |
| Q: how do i prove this. |x + y| <= |x| + |y| A: Questioner: Alan Country: Canada Category: Advanced Math Private: Yes << don't mark ... | |
| Trigonometric Identities | 6/27/2009 |
| Q: The problem I have is (Sec^2x-Tan^2x+Tan)/Secx= Sinx+Cosx My instructor mentioned sometimes it is ... A: Questioner: Stephen Country: United States Category: Advanced Math Private: No Subject: ... | |
| Radius and circumference | 6/26/2009 |
| Q: ,good day.. i am at my first year in college and i cant help but have a hard time solving this ... A: Questioner: thea Country: Philippines Category: Advanced Math Private: No Subject: ... | |
| Volume calculation | 6/26/2009 |
| Q: Klarreich I want to make a mixing drum with a volumetric capacity of 9 cu.ft. I found that the ... A: Questioner: Alfredo Country: United States Category: Advanced Math Private: No Subject: ... | |
| Slope and Y-intercept | 6/25/2009 |
| Q: How do I find the slope and the y-intercept of the line represented by the equation: 7x + y = 8 A: Questioner: Robie Country: United States Category: Advanced Math Private: No Subject: ... | |
| Basic substitution. | 6/25/2009 |
| Q: Verify that the ordered pair (2, -3) is a solution to the equation 4x + 5y = -7 Write the equation ... A: Questioner: Robie Cheek Country: United States Category: Advanced Math Private: No ... | |
| Basic substitution. | 6/25/2009 |
| Q: 1. Verify that the ordered pair (2, -3) is a solution to the equation 4x + 5y = -7 2)For the ... A: Questioner: Robie Cheek Subject: ordered pair1. Verify that the ordered pair (2, -3) is a ... | |
| Inequalities proof | 6/22/2009 |
| Q: given: a^2 + b^2 = 1; c^2 + d^2 = 1 prove ac + bd is less than or equal to 1 ANSWER: Questioner: ... A: James, Sorry I don't have a way to work out your proof, but here is another proof based on two ... | |
| Inequalities proof | 6/22/2009 |
| Q: given: a^2 + b^2 = 1; c^2 + d^2 = 1 prove ac + bd is less than or equal to 1 A: Questioner: James Country: United States Category: Advanced Math Private: No Subject: ... | |
| Vectors | 6/21/2009 |
| Q: So out of 5 assignments these were the only ones i got stuck on. Can you show me the steps?? 1. ... A: Questioner: Brielle Country: United States Category: Advanced Math Private: No Subject: ... | |
| Trigonometric Identities | 6/18/2009 |
| Q: Show that the following example is not an example: (sinx+cos)^2=sin^2x+cos^2x A: Questioner: Reggie Category: Advanced Math Private: No Subject: TrigShow that the ... | |
| Growth and decay. | 6/18/2009 |
| Q: I'm having trouble with one of my homework word problems. Problem: The amount of a radioactive ... A: Questioner: Denise Country: United States Category: Advanced Math Private: No Subject: ... | |
| Logarithm properties. | 6/17/2009 |
| Q: Use the properties of logarithms to solve these problems for the value of x : 1. log 5 30 + log ... A: Questioner: gwen Country: United States Category: Advanced Math Private: No Subject: ... | |
| Logarithms | 6/17/2009 |
| Q: Could you please ans the following: Find how many real values of x satisfy the following eqn ... A: Questioner: Avijit Nayek Country: United States Category: Advanced Math Private: No ... | |
| Algebra mod 2. | 6/17/2009 |
| Q: which number system is this true for.....this is no doubt a graduate level or higher question. Q: ... A: Questioner: Daniel Country: United States Category: Advanced Math Private: No Subject: ... | |
| Binomial expansion. | 6/16/2009 |
| Q: What will be sum of coefficients of even powner of x in (x + y)^100 + (x-y)^100 A: Questioner: Avijit Nayek Country: United States Category: Advanced Math Private: No ... | |
| Equation of a circle. | 6/14/2009 |
| Q: Find the center and radius of a circle given the equation in standard form: x^2+y^2+4x-10y-25=0 A: Questioner: jim Country: United States Category: Advanced Math Private: No Subject: ... | |
| Graphing an open interval. | 6/12/2009 |
| Q: What does a graph of interval (-4,10) look like? A: Questioner: Patricia Country: United States Category: Advanced Math Private: No Subject: ... | |
| exponential equation | 5/12/2009 |
| Q: i'm having trouble rewriting log b n=23 as an equivalent exponential equation. A: Questioner: Jaclyn Country: United States Category: Advanced Math Private: Yes << No. ... | |
| Basic trigonometry. | 5/10/2009 |
| Q: Missed the lessons and do not know what to do or how to start. Acute and right Triangles is the ... A: Questioner: joe Country: United States Category: Advanced Math Private: No Subject: ... | |
| arithmetic | 5/10/2009 |
| Q: A number K, is a positive integer with the special property that 3 times its unit is equal to 2 ... A: Questioner: shruti Country: India Category: Advanced Math Private: No Subject: ... | |
| Elliptipool in math | 5/8/2009 |
| Q: I came across your discussion of the eliptipool ... A: Questioner: Steve Private: no Elliptipool in the mathI came across your discussion of the ... | |
| Trigonometry | 5/8/2009 |
| Q: solve for x to the nearest tenth of a degree on the interval 0 less then or equal to x less then or ... A: Questioner: danielle Country: United States Category: Advanced Math Private: No ---------- ... | |
| Trigonometry | 5/7/2009 |
| Q: solve for x to the nearest tenth of a degree on the interval 0 less then or equal to x less then or ... A: Questioner: danielle Country: United States Category: Advanced Math Private: Yes << Don't ... | |
| Lottery games | 5/7/2009 |
| Q: I wanted to know if there is a mathematical system for figuring out the best pick 3 depending on ... A: Questioner: Miriam Country: United States Category: Advanced Math Private: No Subject: ... | |
| DeMoivre's Theorem - Polar Form | 5/6/2009 |
| Q: i was just wondering if you could belp me with simplifying (-1+i)^16 using euler form. I understand ... A: Questioner: Olivia Country: Australia Category: Advanced Math Private: No Subject: ... | |
| Proofs | 5/5/2009 |
| Q: I believe the following proof question should be proved by contradiction. Here is theIf a and n are ... A: Questioner: Michelle Country: United States Category: Advanced Math Private: No Subject: ... | |
| Exponential equation | 5/4/2009 |
| Q: I am trying to help my son solve a problem of the week. Can you help me? 6x - 6(x - 1) = 6480 the ... A: Questioner: Janet Country: United States Category: Advanced Math Private: No Subject: ... | |
| Factoring and quadratic equations. | 4/30/2009 |
| Q: i have to solve this quadratic equation and i get get myself confused on how to do it. ... A: Questioner: Helen Country: United Kingdom Category: Advanced Math Private: No Subject: ... | |
| Analysis - uniform continous functions | 4/30/2009 |
| Q: I am really struggling with uniform continous and uniform bounded functions, so was hoping for some ... A: Questioner: Steve Country: Australia Category: Advanced Math Private: No Subject: ... | |
| Convergent sequences | 4/29/2009 |
| Q: first, thanksfor prior help, has been great. I have another question on convergence, which I need a ... A: Questioner: Steve Country: Australia Category: Advanced Math Private: No Subject: ... | |
| Rate of change. | 4/29/2009 |
| Q: 1. Find the average rate of change of f(x)=(1/x+1) on the interval [0,4]. Can u how how u did it? ... A: Questioner: michelle Country: United States Category: Advanced Math Private: Yes << CHANGED. ... | |
| Monotone sequences and natural logarithm | 4/28/2009 |
| Q: I have had a go at this question but I think my attempt is pretty clumsy and possibly too weak. ... A: Questioner: Steve Country: Australia Category: Advanced Math Subject: Monotone sequencesHi ... | |
| Riemann sums | 4/27/2009 |
| Q: The natural logarithm is defined by ln x = integral from 1 to x of 1/t dt. By considering the ... A: Questioner: Steve Country: Australia Category: Advanced Math Private: No Subject: ... | |
| Convergent sequences | 4/26/2009 |
| Q: Paul, looking for help with this question, please: Let {a_n} be null and sequence {b_n} be bounded. ... A: Questioner: Steve Country: Australia Category: Advanced Math Private: No Subject: ... | |
| Intercept s | 4/26/2009 |
| Q: FInd the x and y intercepts, for line y = (3/2)*X – 4/3 A: Questioner: tina Country: United States Category: Advanced Math Private: No Subject: ... | |
| Math Proof--Tough | 4/24/2009 |
| Q: Proof #8 Playing with the applet that demonstrates the Euclid's proof (#7), I have discovered ... A: Questioner: rohan Country: United States Category: Advanced Math Private: No Subject: ... | |
| Vectors and work | 4/24/2009 |
| Q: Find the work done by a force of 6 pounds acting in the direction of 37 degrees to the horizontal in ... A: Questioner: brittney Country: United States Category: Advanced Math Private: No Subject: ... | |
| Addition of vectors | 4/24/2009 |
| Q: A DC-10 jumbo jet maintains an airspeed of 600 miles per hour in a southeasterly direction. The ... A: Questioner: brittney Country: United States Category: Advanced Math Private: No Subject: ... | |
| Trigonometric identity | 3/29/2009 |
| Q: I have puzzled over this question for several days and everything I've tried has gotten me nowhere. ... A: Questioner: Mckenzie Country: United States Category: Advanced Math Private: No Subject: ... | |
| confusion | 3/29/2009 |
| Q: 1- If I do postgraduates in mathematics , will I expose to " matlab " software on my studies of ... A: Questioner: AOB Country: Egypt Category: Advanced Math Private: No Subject: ... | |
| inequality | 3/29/2009 |
| Q: I've the following problem: x, y are positive numbers and x+y=1. How can i proof, this inequality ... A: Questioner: grull Country: Hungary Category: Advanced Math Private: Yes Subject: ... | |
| radical equation | 3/26/2009 |
| Q: I don't remember how to solve this problem. I know how to get rid of the radical. ... A: Questioner: Tom Country: United States Category: Advanced Math Private: No Subject: ... | |
| cost and revenues | 3/25/2009 |
| Q: graph the cost and revenue curves C(x)= 70x + 2200 and R(x)=200x - x ^2 A: Questioner: tiffany frank Country: United States Category: Advanced Math Private: Yes ... | |
| Adding fractions. | 3/25/2009 |
| Q: 3/ 16 + 1 / 18 16 = 2 x 2 x 2 x 2 18 = 2 x 3 x 3 LCD = 2 x 2 x 2 x 2 x 3 x 3 How do I go ... A: Questioner: Donna Country: United States Category: Advanced Math Private: No Subject: ... | |
| Counting principle | 3/22/2009 |
| Q: In how many orders can a party of 4 girls and 4 boys be placed at a round table so that the boys and ... A: Questioner: Abdul Mateen Country: Pakistan Category: Advanced Math Private: No Subject: ... | |
| Percentages | 3/22/2009 |
| Q: 1. if the price of gasoline increase by 25% and Ron intends to spend only 15% more on gasoline, by ... A: Questioner: Catherine Country: Philippines Category: Advanced Math Private: No Subject: ... | |
| Set Relationship | 3/20/2009 |
| Q: this problem is quite difficult to understand, but I will do my best. If (A intersect complement B) ... A: I have another question about this problem, only this time it is reverse: >> the word is CONVERSE. ... | |
| Basic trigonometry. | 3/20/2009 |
| Q: 2. using exact values, find the numerical value of: sin 30* cos 240* + sin 210* sin 300* 5. find ... A: Questioner: mikaela amador Country: Philippines Category: Advanced Math Private: No ... | |
| Equation of a parabola. | 3/19/2009 |
| Q: Bill Nye The science guy launched a kiwi fruit straight into the air. The kiwi fruit took off at a ... A: Questioner: Dakota Country: United States Category: Advanced Math Private: No Subject: ... | |
| Sets and Cartesian Products | 3/19/2009 |
| Q: I have to write an application problem using a Venn diagram with three different sets and describe ... A: Questioner: Lu Country: United States Category: Advanced Math Private: No Subject: ... | |
| Pythagorean Triple Proof | 3/19/2009 |
| Q: which mean that there are three natural numbers x, y, z provided that x<y<z. I have to assume a, b, ... A: Questioner: Jen Country: United States Category: Advanced Math Private: No Subject: ... | |
| hw help | 3/18/2009 |
| Q: 2(cos^2)3a-1. how would you simplify the given expression? I know that you need to use the trig ... A: Questioner: melie Country: United States Category: Advanced Math Private: No Subject: hw ... | |
| Pythagorean Theorem | 3/18/2009 |
| Q: Draw a right triange with a hypotenuse length of square root of 5. How do you solve a problem like ... A: Questioner: Becca Country: United States Category: Advanced Math Private: No Subject: ... | |
| Algebra 2 | 3/17/2009 |
| Q: hOW WOULD YOU SOLVE r+s+t=5, 2r-7s-3t=13, and 1/2r - 1/3s+2/3t=-1, in Algebra 2, which is called ... A: Questioner: Andre Category: Advanced Math Private: No Subject: Algebra 2hOW WOULD YOU ... | |
| Set Relationship | 3/17/2009 |
| Q: this problem is quite difficult to understand, but I will do my best. If (A intersect complement B) ... A: Questioner: Amanda Category: Advanced Math Private: No Subject: Set RelationshipHi, this ... | |
| probability | 3/17/2009 |
| Q: what is the probability of rolling 4 12-sided dice and getting at least one (2) or one (3)? Explain ... A: Questioner: carleen Category: Advanced Math Private: No Subject: probabilitywhat is the ... | |
| Quadratic Simultaneous Equations | 3/16/2009 |
| Q: Its a quadratic simultaneous equation. The equations are x² - y² = -5 and 2x² + xy -y² = 5 Thanks A: Questioner: Harry Category: Advanced Math Private: No Subject: Quadratic Simultaneous ... | |
| Pythagorean Triple Proof | 3/16/2009 |
| Q: which mean that there are three natural numbers x, y, z provided that x<y<z. I have to assume a, b, ... A: Questioner: Jen Category: Advanced Math Private: No Subject: Pythagorean Triple ProofHi I ... | |
| Induction | 3/16/2009 |
| Q: I need to prove that k! > k^2. I am able to complete the induction, but then I need to show that ... A: Questioner: Jen Category: Advanced Math Private: No Subject: ProofI need to prove that k! ... | |
| Trigonometric identity | 3/15/2009 |
| Q: I have a problem that says : express sin11pi/12+sin5pi/12 as a product and find the exact value of ... A: Questioner: jamal Category: Advanced Math Private: No Subject: ProblemI have a problem ... | |
| Trigonometric Identities | 3/15/2009 |
| Q: Evaluate the following: 1.) tan2A, given sin A = 3/5 and A Є QII 2.) sec 2x, given tan x = 5/3 ... A: Questioner: junmccain Category: Advanced Math Private: No Subject: Trigonometric ... | |
| McClaurin Series for ln(1 + x) | 3/13/2009 |
| Q: I was fiddling around with some Taylor polynomials for certain functions recently and I found that ... A: Questioner: Anthony Cordisco Category: Advanced Math Private: No Subject: McClaurin Series ... | |
| Logarithm and exponent properties. | 3/12/2009 |
| Q: I am really stuck on questions 9, 10, 11 and 12. Can you please help? A: Example 11: a. If A = log4(3), then 4^A = 3. If B = log2(sqrt(3)) then: B = 1/2 log2(3) ... | |
| Business math | 3/11/2009 |
| Q: , my name is ajanthana and i`m in gr.11 functions and i reallly am in need of some help! i tried ... A: Questioner: ajanthana Category: Advanced Math Private: No Subject: please helpp me: ... | |
| Binomial probability | 3/10/2009 |
| Q: i am having trouble solving this particular question, can you please help me. thankyou. In the ... A: Questioner: Ashwati Category: Advanced Math Private: Yes Subject: sets and probabilityhi ... | |
| Inverse variation. | 3/10/2009 |
| Q: I need help with this Algebra problem...I think the answer is 2, The weight is divided by 2, but I ... A: No, the weight is divided by 4. If A is INVERSELY proportional to B, then when B is multiplied by ... | |
| Decimals & Mills | 3/8/2009 |
| Q: I read the following in an old business mathematics textbook: "Express 13 mills as a decimal part of ... A: Questioner: Kenneth Category: Advanced Math Private: No Subject: Decimals & MillsHello: I ... | |
| Variation | 3/7/2009 |
| Q: Paul, Can you help me to solve this? I believe this is a math variation problem. Water Cost In a ... A: Questioner: Jenny Category: Advanced Math Private: Yes Subject: Math Variation ... | |
| real analysis sequences | 3/7/2009 |
| Q: Let x_n >= 0 for all n in the natural numbers. 1. If (x_n) converges to 0, show that (sqrt(x_n)) ... A: Questioner: Katy Category: Advanced Math Private: No Subject: real analysis sequencesLet ... | |
| perimeter and area | 3/6/2009 |
| Q: The total cost of cultivating a rectangular field at Rs 1.50 per square metre is Rs 1833 .If the ... A: Questioner: ratu Category: Advanced Math Private: Yes Subject: perimeter and areaThe total ... | |
| Basic counting principle. | 3/4/2009 |
| Q: Can you tell me how many possible ticket combinations. Here's an example: MTL BUF ... A: Questioner: kyle Category: Advanced Math Private: No Subject: Ticket CombinationCan you ... | |
| Trigonometic equation | 3/2/2009 |
| Q: Find all solutions of 2-sin^2x=2cos^2(x/2) A: Questioner: Marshall Category: Advanced Math Private: No Subject: TrigFind all solutions ... | |
| Complex Numbers | 3/2/2009 |
| Q: I have this question in which I was able to do up to part (b) i] but am now stuck with the rest. The ... A: Questioner: Kaela Category: Advanced Math Private: No Subject: Complex Numbers ... | |
| Trigonometric identity | 3/1/2009 |
| Q: verify the identity cos4x=1-8sin^2x+8sin^4x A: Questioner: mike Category: Advanced Math Private: Yes Subject: trigverify the identity ... | |
| x-intercepts | 3/1/2009 |
| Q: how do you find the x-intercept of the following examples: y=2x^3-7x^2-3x+1 y=2x^2-10x-2 ... A: Questioner: Sasha Category: Advanced Math Private: Yes Subject: x-intercepthow do you find ... | |
| what to do in making a four equations and four unknowns in matrix (main diagonal method)? | 2/28/2009 |
| Q: i keep on solving over and over again but its really hard to come up or to prove with my own ... A: Look for an equation and a variable with a coefficient of 1. Use it to eliminate that variable in ... | |
| Ratios | 2/26/2009 |
| Q: A group of 10 employees in an office decide to contribute $1.00 to a lottery. Nine of the employees ... A: Questioner: Kenneth Category: Advanced Math Private: No Subject: RatiosHello: A group of ... | |
| Percentages | 2/25/2009 |
| Q: a cylindrical jar with hieght 8 inches and diameter 6 inches is filled to 75% of its capacity with ... A: Questioner: daisy Category: Advanced Math Private: Yes Subject: hspa practice questiona ... | |
| Trig Identities | 2/25/2009 |
| Q: I got the teacher that doesn't teach he expects us to look a the problem and know exactly how to do ... A: Questioner: Lauren Private: no Subject:I got the teacher that doesn't teach he expects us to look ... | |
| Simultaneous equations | 2/23/2009 |
| Q: I'm taking Precalc and I need help with a problem. How do I write the equation of a parabala that ... A: Questioner: Kelsey Category: Advanced Math Private: No Subject: Precalc Algebra 2Hi, I'm ... | |
| Trigonometric identity | 2/20/2009 |
| Q: I have one question on my homework that I just can't figure out. Here goes: (2sin^2 2x) + (cos 4x) = ... A: Questioner: Stefanie Category: Advanced Math Private: No Subject: Prove a trig identityI ... | |
| Coordinate geometry | 2/18/2009 |
| Q: A line passes through point (2, 2). Find the equation of the line if the length of the line segment ... A: Questioner: lawrence Category: Advanced Math Private: No Subject: equationA line passes ... | |
| First order differential equations | 2/17/2009 |
| Q: I dont know how to begin. Please guide me. The amount A grams of a given carbon isotope in a dead ... A: Questioner: Ling Category: Advanced Math Private: No Subject: First order differential ... | |
| Probabilities | 2/15/2009 |
| Q: If you could help me answer this question i would be much obliged. I have already answered parts ... A: Questioner: mike88 Category: Advanced Math Private: Yes Subject: ProbabilitiesIf you could ... | |
| Intercepts | 2/11/2009 |
| Q: If f(x) is defined by -x - 4 / (x + 1). I;ve to find coordinates of where cuts y axis x = 0 so ... A: Questioner: cassie Category: Advanced Math Private: No Subject: Function problemIf f(x) ... | |
| About vector | 2/8/2009 |
| Q: If you know, can please you give me as many sites as possible which i can learn on the topic vector ... A: Questioner: Hua Private: no Subject:If you know, can please you give me as many sites as possible ... | |
| Solving exponential equations. | 2/7/2009 |
| Q: I am having a problem with a logarithm question and was wondering whether you could point me in the ... A: Questioner: Haydn Category: Advanced Math Private: No Subject: Solving logarithms via ... | |
| Cubic Formula | 2/6/2009 |
| Q: i need some help please... Use the cubic formula to solve this: x^3 + 4x^2 - 5x -3 Thanks A: Questioner: Travis Mbachu Private: no Subject:Hello, i need some help please... Use the cubic ... | |
| Abstract Algebra | 2/5/2009 |
| Q: Gi Paul, I hope you can help. I am including the question and what I have done so far to see if I ... A: Questioner: karen Category: Advanced Math Private: No Subject: Abstract AlgebraHi Paul, I ... | |
| A famous last theorem needed? | 2/4/2009 |
| Q: you have positive integers a,b,c,d with a^3=b^5 and c^3 = d^5 and c-a = 32. Show there is no ... A: Questioner: Sombra Category: Advanced Math Private: No Subject: rational roots theorem ... | |
| minimizing problem | 2/4/2009 |
| Q: Please see the attached image. This problem requires me to figure out an algorithm is not correct ... A: Suppose there are just two profs, A and B, and their offices and the classrooms (1 and 2) are all on ... | |
| Mathematician | 2/3/2009 |
| Q: I m electronics & communication engineer , I detected that after taking my bachelor degree , I most ... A: Questioner: AJ Category: Advanced Math Private: No Subject: mathematicIanhello sir I m ... | |
| Series | 2/2/2009 |
| Q: I have a series X-X^3+X^5-X^7+X^9 etc.. and its starts at K=0 to infinity. I understand theres an ... A: Questioner: Nicole Category: Advanced Math Private: No Subject: Formula 4 seriesI have a ... | |
| Simultaneous equations | 2/2/2009 |
| Q: hey there Paul, I'm a student in year 12 in australia and have a question about multi equation ... A: It is because I have the 'rate' option turned off currently. I have received enough ratings from ... | |
| Simultaneous equations | 2/2/2009 |
| Q: hey there Paul, I'm a student in year 12 in australia and have a question about multi equation ... A: Questioner: Ray Category: Advanced Math Private: No Subject: Simultaneous equationshey ... | |
| calculus | 2/1/2009 |
| Q: How to find x for: x (sin 2)+sin(2x)= 0 A: Questioner: Nurul Category: Advanced Math Private: No Subject: calculusHow to find x for: ... | |
| Infinite Geometric Series | 2/1/2009 |
| Q: Right now I am learning about Infinite Geometric Series in one of my classes and I've read ... A: Questioner: Jake Category: Advanced Math Private: No Subject: Infinite Geometric ... | |
| Infinite Geometric Series | 1/31/2009 |
| Q: Right now I am learning about Infinite Geometric Series in one of my classes and I've read ... A: Questioner: Jake Category: Advanced Math Private: No Subject: Infinite Geometric ... | |
| Simultaneous equations | 1/31/2009 |
| Q: hey there Paul, I'm a student in year 12 in australia and have a question about multi equation ... A: Questioner: Ray Category: Advanced Math Private: No Subject: 3 equation simutaneous ... | |
| Identities | 1/29/2009 |
| Q: how do i express i = 100sin(θ) + 150sin(θ + Π/3) as Rsin(θ ± α) in ... A: Questioner: Craig Category: Advanced Math Private: No Subject: Identitieshow do I express ... | |
| Mixture problem | 1/29/2009 |
| Q: Water mixture: hot water temperature 130 degree, cold water 55 degree, desired temperature 93. ... A: Questioner: Earnest Category: Advanced Math Private: No Subject: math water problemWater ... | |
| Function Rule | 1/28/2009 |
| Q: What is the function rule for: x=0,1,2,3 y=2,5,8,11 A: Questioner: Paula Category: Advanced Math Private: No Subject: Function RuleWhat is the ... | |
| Probability. | 12/19/2008 |
| Q: This question is about the probability that a specific door prize (one of 20) would be won by a ... A: Questioner: Mel Category: Advanced Math Subject: Probability -- door prizeHi, This ... | |
| Basic properties of integrals. | 12/16/2008 |
| Q: I am having trouble with an analysis problem. If f is continuous on [a,b] and there exists numbers ... A: Questioner: Gloria Category: Advanced Math Subject: Math Analysis HWI am having trouble ... | |
| Basic counting principle | 12/15/2008 |
| Q: With this question I was thinking that I should write out all of the possible solutions, but that ... A: Did you look up the counting principle? It says: If the first thing can be done n1 ways, and If ... | |
| Implicit differentiation. | 12/14/2008 |
| Q: Consider the curve given by xy^2 - (x^3)y = 6 a. Show that dy/dx = (3(x^2)y - y^2) / (2xy - x^3) b. ... A: Questioner: Chris Category: Advanced Math Private: No Subject: CalculusConsider the curve ... | |
| Basic counting principle | 12/14/2008 |
| Q: With this question I was thinking that I should write out all of the possible solutions, but that ... A: Questioner: debbi Category: Advanced Math Private: No Subject: ALGEBRAHello, With this ... | |
| Integrable function | 12/14/2008 |
| Q: I am having a hard time on this analysis hwSuppose that f is integrable on the interval [a,b] and ... A: Questioner: Megan Category: Advanced Math Private: No Subject: Analysis HwI am having a ... | |
| Equation with complex numbers | 12/13/2008 |
| Q: I came up with a solution. Do you think that it is right? Here it is: (1+z)^5=-i(1-z)^5 => fifth ... A: Questioner: Stamatis Category: Advanced Math Private: No Subject: Equation with complex ... | |
| Sets and functions | 12/11/2008 |
| Q: Let f: X is onto Y. Prove that f is a one-to-one function if and only if f(A)intersection f(B)= f(A ... A: Questioner: Pete Category: Advanced Math Private: No Subject: Math Foundations ProofsLet ... | |
| Mappings | 12/10/2008 |
| Q: Let f:('All Integers'=Z)Zsub5 -> Zsub5, be a function defined by f([a])=[2a+3]. a.)Show that f is ... A: Questioner: Tonya Category: Advanced Math Private: No Subject: Mathematical ... | |
| Trigonometric Identities and equations | 12/10/2008 |
| Q: i have tried to solve this question in many different ways -1/csc x = √3 /sec x I have to ... A: Questioner: Emma Category: Advanced Math Private: No Subject: Trigonomic Identitiesi have ... | |
| GCD of two integers | 12/9/2008 |
| Q: Prove that the nonzero element [a] of Zn has a multiplicative inverse Zn if and only if n and a are ... A: Questioner: sam Category: Advanced Math Private: No Subject: Proof help pleaseProve that ... | |
| Linear equations. | 12/9/2008 |
| Q: x-2y+3z=7 2x+y+2=4 -3x+2y-2z=-10 A: Questioner: bunchie Category: Advanced Math Private: Yes Subject: solving system of ... | |
| Linear functions | 12/8/2008 |
| Q: I need help with this problem. the P=$20 and the company is selling only x=42 tiles, but if they ... A: Questioner: martha Category: Advanced Math Private: No Subject: math questionI need help ... | |
| Fractional Inequalities | 12/7/2008 |
| Q: I studied fractional inequalities last year, and no longer remember how to solve for them very well. ... A: Questioner: Jen Category: Advanced Math Private: No Subject: Precalculus: Fractional ... | |
| Basic coordinate geometry | 12/7/2008 |
| Q: 1) Solve the simultaneous equations: x – 3y + 1 = 0 x² - 3xy + y² = 11 2) f(x) = x² - kx + 9, ... A: Questioner: omar Category: Advanced Math Private: No Subject: As-level ... | |
| Trigonometric functions - graphs | 12/7/2008 |
| Q: For 1-9, Can you please do me a huge favor and tell me step-by-step for each question what to type ... A: 1) y = 5 sin x ANSWER: The amplitude is 5 >. There is nothing to work out. A. Draw the basic sine ... | |
| Trigonometric functions - graphs | 12/6/2008 |
| Q: For 1-9, Can you please do me a huge favor and tell me step-by-step for each question what to type ... A: Questioner: Andy Category: Advanced Math Private: Yes Subject: graphs and trigFor 1-9, Can ... | |
| Probability | 12/6/2008 |
| Q: What is the probability that a bridge hand contains exactly 3 aces or exactly 6 diamonds, or both A: Questioner: Jeff Category: Advanced Math Private: Yes Subject: ProbabilityWhat is the ... | |
| Trigonometric Identities | 12/5/2008 |
| Q: I really appreciated it :) I rewrote the other question that you had a hard time reading: sin x * ... A: Questioner: Tyler Category: Advanced Math Private: No Subject: Trigonometric ... | |
| Verbal problems -Rate, Time, Distance | 12/5/2008 |
| Q: I need to find out the answer to this question, using Elimenation or Substitution. Ian invested ... A: Questioner: britt Category: Advanced Math Private: No Subject: Elimenation and ... | |
| Linear equations. | 12/5/2008 |
| Q: Instructions: Solve the following using the method of your choice. 2 1 - x+ - y = 3 3 4 1 ... A: Questioner: brittany Category: Advanced Math Private: No Subject: Elimenation and ... | |
| Trigonometric Identities and equations | 12/4/2008 |
| Q: I am having problems solving a few trigonometric identities. If you could help, I would really ... A: Questioner: Tyler Category: Advanced Math Private: No Subject: Trigonometric IdentitiesI ... | |
| algebra | 12/4/2008 |
| Q: Good Day to you Mr.Klarreich! i don't really have a particular question to ask.I just want to ask ... A: Questioner: jame morrice Category: Advanced Math Private: No Subject: algebraGood Day to ... | |
| Basic integrals. | 12/3/2008 |
| Q: How do you complete the integration for e^(-2x) + 4 /(2x + 5)? Thanks. A: Questioner: Jill Category: Advanced Math Private: No Subject: Logarithm FunctionHow do you ... | |
| trig | 12/3/2008 |
| Q: how do you find the tan(32) in trig A: Questioner: abby Private: NO << I changed it. Subject: Basic trigonometry.how do you find the ... | |
| Conditional probability | 12/3/2008 |
| Q: 13.) A biology class consist of 50 percent freshmen, 25 percent sophomores, 15 percent junior, and ... A: Questioner: jason Category: Advanced Math Private: No Subject: finite math13.) A biology ... | |
| Natural Logarithmic Function (Differentation and Integration) | 12/2/2008 |
| Q: I hope you could help me with the following questions: (i've provided the answer as the answers ... A: Questioner: Lill Category: Advanced Math Private: No Subject: Natural Logarithmic Function ... | |
| Polar coordinates | 12/2/2008 |
| Q: Convert the polar equation to rectangular form r square= sin2x r= 3cos2x A: Questioner: Thanh Category: Advanced Math Private: No Subject: precalConvert the polar ... | |
| Trigonometric identities | 11/30/2008 |
| Q: im having a hard time with this. please help. -express pi as: A. sum of 2 angles B. difference of 2 ... A: Questioner: Marga Category: Advanced Math Private: No Subject: sum & difference ... | |
| Population growth or Decay | 11/30/2008 |
| Q: Certain animal, current population 350, is growing 3% each year if left to itself, but hunters kill ... A: Questioner: Dag Category: Advanced Math Private: No Subject: Population growth or ... | |
| Basic verbal problems. | 11/28/2008 |
| Q: An inlet pipe provides 4 gal/min more than a second pipe and 6 gal/min less than a third pipe. ... A: Questioner: Ginger Category: Advanced Math Private: Yes Subject: math word problemAn inlet ... | |
| Linear equations. | 11/27/2008 |
| Q: 1.find the determinant of the following 5x5 matrix 4 1 8 2 5 1 0 0 3 1 4 2 3 1 3 6 4 4 1 0 7 3 1 2 ... A: Questioner: RONALD Category: Advanced Math Private: No Subject: maths1.find the ... | |
| graphing absolute value | 11/26/2008 |
| Q: y=|x|+3 I had to graph this equation. I used the pairs(4,7); (2,5); (1,3). My line was not ... A: Questioner: Karima Category: Advanced Math Private: No Subject: graphing equationsy=|x|+3 ... | |
| graphing absolute value | 11/25/2008 |
| Q: y=|x|+3 I had to graph this equation. I used the pairs(4,7); (2,5); (1,3). My line was not ... A: Questioner: Karima Category: Advanced Math Private: No Subject: graphing equationsy=|x|+3 ... | |
| Subsets - basic counting. | 11/24/2008 |
| Q: Counting, Probability Distributions, and Further Topics in Probability A car dealer has 6 red, 10 ... A: Questioner: Jeffrey Category: Advanced Math Private: No Subject: Discrete ... | |
| Linear programming | 11/24/2008 |
| Q: A company has 20 checkouts which can be staffed by either trainee or experienced operators. ... A: Questioner: rg Category: Advanced Math Private: No Subject: word problem /algebraA company ... | |
| fields | 11/23/2008 |
| Q: The problem statement: If a in K is such that a^2 is algebraic over the subfield F of K, show a is ... A: Questioner: Sombra Category: Advanced Math Private: No Subject: fieldsThe problem ... | |
| Law of Sines and Cosines | 11/23/2008 |
| Q: Instructions: Use either Law of Sines or Law of Cosines as appropriate to solve the triangle. 1. ... A: Questioner: Laura Category: Advanced Math Private: No Subject: Calculus: Law of Sines and ... | |
| Basic substitution | 11/22/2008 |
| Q: The relation between Celsius and Farenheit scale of temperatures is given by: C = (5/9)(F - 32) or F ... A: Questioner: Karima Category: Advanced Math Private: No Subject: linear equation word ... | |
| Rate Problem | 11/21/2008 |
| Q: I have a problem that reads: A daughter can mow the lawn in 20 minutes and the father can mow the ... A: Questioner: David Category: Advanced Math Private: No Subject: Rate ProblemI have a ... | |
| Permutations with repeated elements. | 11/19/2008 |
| Q: All letters of the word WARRAGAMBA will be arranged on a line. In how many ways can this be done if ... A: Questioner: Verena Category: Advanced Math Private: No Subject: MathsAll letters of the ... | |
| Uniform continuity | 11/18/2008 |
| Q: I am sorry, I'm not trying to annoy you. For some reason it keeps cutting off the end of the ... A: Questioner: megan Category: Advanced Math Private: No Subject: analysis ?I am sorry, I'm ... | |
| Mathematical Induction | 11/17/2008 |
| Q: I need to solve a problem by MI: Show 16^n+10n-1 is divisible by 25 for any value of n. I made sure ... A: Questioner: Ryan Category: Advanced Math Private: No Subject: Mathematical InductionHi, I ... | |
| Systems of Equations in Three Variables | 11/17/2008 |
| Q: I am in solving systems of equation in three variables part of my chapter and I am having trouble ... A: Questioner: Ashton Category: Advanced Math Private: No Subject: Solving Systems of ... | |
| Slope of a Line | 11/17/2008 |
| Q: What happens when the slope increases? On a graph of y=2x and y=6x. What happens when the slope ... A: Questioner: Clarissa Category: Advanced Math Private: No Subject: GraphingWhat happens ... | |
| Absolute value. Basic graphing | 11/16/2008 |
| Q: Can you please help me with this question? It has two parts: a. Create an absolute value function ... A: Questioner: Debbi Category: Advanced Math Private: No Subject: AlgebraHello, Can you ... | |
| Exponential equation. | 11/13/2008 |
| Q: How would I solve for t in the following equation: R = 3e^-t - 3e^-2t + e^-3t The only way I can ... A: Questioner: Nathan Private: no Subject: How would I solve for t in the following equation: R ... | |
| Functional notation. | 11/12/2008 |
| Q: Kindly help with the following: 1. Let f(b)= a^2b^3 + a^3b^2 what is f(a)? and what is f(ab)? 2. TR ... A: Questioner: Tunde Category: Advanced Math Subject: AlgebraKindly help with the following: ... | |
| Trigonometric identities | 11/12/2008 |
| Q: ((cos)/(1-tan))+((sin)/(1-cot))=sin+cos A: Questioner: ciji Category: Advanced Math Private: No Subject: Proving trig ... | |
| Basic set operations | 11/11/2008 |
| Q: Let A and B be sets. Show, in general, that A x B(the A and the B are both under a symbol ~) are not ... A: Questioner: Tonya Category: Advanced Math Private: No Subject: ProofsLet A and B be sets. ... | |
| Exponential equation. | 11/11/2008 |
| Q: hey. i was wondering if you could help me solve this problem. it says: solve for x if (1/125) = ... A: Questioner: astrid Category: Advanced Math Private: No Subject: pre calc (exponential and ... | |
| Trigonometric functions - definitions | 11/11/2008 |
| Q: This is not my homework i want to get in this vey prestigous high school and it is required to know ... A: Questioner: Breanna Category: Advanced Math Private: No Subject: triginometry ratiosThis ... | |
| Proof with odd and even integers. | 11/10/2008 |
| Q: Paul, thanks for your help so far. I do not understand this next one at all. I am anxious to see ... A: Questioner: Pete Category: Advanced Math Private: No Subject: ProofsPaul, thanks for your ... | |
| Basic differentiation - Chain Rule | 11/9/2008 |
| Q: Differentiate.i) sin^3xcos3x + cos^3xsin3x. ii) ln (sec x + tan x) For part ii) can it just be the ... A: Questioner: jenny Category: Advanced Math Private: No Subject: integrationDifferentiate. ... | |
| Inequalities - graphing | 11/9/2008 |
| Q: Solve the equation (2x+3)/(x-5) < MODULUS OF [(4x+12)/(x+1)] I wasn't sure what to do so I cross ... A: Questioner: jenny Private: no Subject:Solve the equation (2x+3)/(x-5) < MODULUS OF ... | |
| Subgroups | 11/8/2008 |
| Q: ?Let H and K be subgroups of a group G where the order of H=9 and the order of K=12 and where the ... A: Questioner: Jacob Category: Advanced Math Private: No Subject: Abstract AlgebraLet H and K ... | |
| Exponential equation. | 11/8/2008 |
| Q: How would I solve for t in the following equation: R = 3e^-t - 3e^-2t + e^-3t The only way I can ... A: Questioner: Nathan Category: Advanced Math Private: No Subject: Solve for t in exponential ... | |
| Proofs - odd and even integers. | 11/8/2008 |
| Q: Prove by contrapositive. Let x be an element of the set of integers. If 5x-7 is even, then x is odd. ... A: Questioner: Pete Category: Advanced Math Private: No Subject: ProofsProve by ... | |
| homomorphisms of rings | 11/5/2008 |
| Q: I received a reply from you that said see other answer, where is this other answer? Aside from that ... A: Questioner: Sombra Category: Advanced Math Private: No Subject: homomorphisms of ringsHi ... | |
| Consecutive integers | 11/3/2008 |
| Q: I have this question and I think I have come up with the right formula, however, I am having trouble ... A: Questioner: Debbi Category: Advanced Math Private: No Subject: AlgebraHello, I have this ... | |
| Quadratic equation disguised. | 11/1/2008 |
| Q: I am assuming that y+y^1/2-7 is classed as non polynomial. The question was Solve y + y^(1/2) - 7 = ... A: Yes, that checks out. The (quadratic) form will be: x^2 - 8x + 11 = 0 8 +- sqrt(64-44) x = ... | |
| Quadratic equation disguised. | 11/1/2008 |
| Q: I am assuming that y+y^1/2-7 is classed as non polynomial. The question was Solve y + y^(1/2) - 7 = ... A: Questioner: rg Category: Advanced Math Private: No Subject: technique for solving ... | |
| Fractions | 10/30/2008 |
| Q: We live in France and my son got a math problem the likes of which I have never seen. I don't ... A: Questioner: Cheryl Category: Advanced Math Private: No Subject: FractionsWe live in France ... | |
| Inequalities | 10/30/2008 |
| Q: Chapter 7- Linear Programming Sorry, I forgot to ask this question. Write a system of inequalities ... A: Questioner: Jeffrey Category: Advanced Math Private: No Subject: Discrete ... | |
| Mathematical Induction | 10/29/2008 |
| Q: 1) solve (1/3)+(1/15)+(1/35)+...(1/(2(n-1)(2n+1))=(1/(2n+1)). 2) solve 1+2+2^2+...+2^(n-1)=2^(n)-1 A: Questioner: tofunmi Category: Advanced Math Private: No Subject: mathematical induction1) ... | |
| Supplementary Angle in Radians | 10/29/2008 |
| Q: Lets say I have an angle that is -3 rads. Is there a supplement to it? I answered this question on a ... A: Questioner: Tyler Beyett Category: Advanced Math Private: No Subject: Supplementary Angle ... | |
| Complex numbers | 10/29/2008 |
| Q: find the complex zeros of f(x)=x squared+ 1 I am HOPELESS with math but am really trying, but with ... A: Questioner: Natasha Category: Advanced Math Private: No Subject: Complex zerosfind the ... | |
| Simultaneous equations - nonlinear | 10/28/2008 |
| Q: I know how to graph this question but I'm not sure how to solve algebraically. Solve the following ... A: Questioner: Debbi Category: Advanced Math Private: No Subject: ALGEBRAI know how to graph ... | |
| Simultaneous Equations, both the simple and quadratical. | 10/21/2008 |
| Q: 1. Find all possible solutions to the equations x + y + 3z=1 3x - y + 2z=2 8x - 4y + 3z=5 2. The ... A: Jamie, You didn't indicate what you already tried to do, so I assume you just want an outline of ... | |
| Venn Diagram. | 10/20/2008 |
| Q: In a large locality, 60 percentage of families have a car, 50 percentage have an air condition and ... A: Questioner: akanksha Category: Advanced Math Private: No Subject: probabilityIn a large ... | |
| Systems of linear equations | 10/19/2008 |
| Q: There are 18 heads and 50 legs on a farm. How many are cows? How many are people. Answer 7 cows, 11 ... A: Questioner: Tony Carvlho Category: Advanced Math Private: No Subject: FINDING THE ... | |
| Systems of linear equations | 10/19/2008 |
| Q: I need your help with this word problem. Chapter 6- Systems of Linear Equations and Matrices ... A: Questioner: Jeffrey Category: Advanced Math Private: No Subject: Discrete ... | |
| Systems of linear equations | 10/18/2008 |
| Q: Chapter 6- Systems of Linear Equations and Matrices Write the augmented matrix of the system and ... A: Questioner: Jeffrey Category: Advanced Math Private: No Subject: Discrete ... | |
| Set operations - basic | 10/17/2008 |
| Q: Given U = {18. 19. 20, 21, 22, 23, 24, 25, 26, 27, 28, 29}, A = {21, 23, 25, 27, 29}, and B = ... A: Questioner: jalisa Category: Advanced Math Private: No Subject: Set operations - basic ... | |
| Set operations - basic | 10/17/2008 |
| Q: Given U = {18. 19. 20, 21, 22, 23, 24, 25, 26, 27, 28, 29}, A = {21, 23, 25, 27, 29}, and B = ... A: Questioner: jalisa Category: Advanced Math Private: No Subject: MathGiven U = {18. 19. 20, ... | |
| Venn Diagram. | 10/16/2008 |
| Q: A survey of residents in a small town showed the following: 29 ate beef 13 ate both beef and ... A: Questioner: Jalisa Category: Advanced Math Private: No Subject: MathA survey of residents ... | |
| Trigonometric Identities | 10/15/2008 |
| Q: I am having trouble vcerifying this identity because of the powers for each function. ... A: Questioner: Stephanie Category: Advanced Math Private: No Subject: Verifying Trig ... | |
| Basic physics of heat. | 10/15/2008 |
| Q: The latent heat of fusion (solid become liquid) for ice is 79.8 cal/gram. How much ice can we ... A: Questioner: Dominique Category: Advanced Math Private: No Subject: problem solving ... | |
| Trigonometric Functions | 10/14/2008 |
| Q: Trigonometric Functions and another related question. I'm having trouble with the every part of this ... A: Mike, The keys to this lie in: I. Making a good diagram. Really good. II. Knowing your stuff about ... | |
| Polynomial graphs?? | 10/14/2008 |
| Q: -4,2 -2,1 0,0 1,2 thank you so much A: Questioner: carmen Category: Advanced Math Private: No Subject: high school algebra I ... | |
| Logarithms | 10/13/2008 |
| Q: 8) -log(10/3) in the form c+logd where c and d are rational numbers and the logarithms are to the ... A: Questioner: rg Category: Advanced Math Private: No Subject: express log ...... in the form ... | |
| DeMoivre's Theorem | 10/12/2008 |
| Q: Find all fifth roots of 32i and express in rcis. Pick one of them and express in a + bi form. I am ... A: Questioner: Melissa Category: Advanced Math Private: No Subject: fifth rootsFind all fifth ... | |
| Domain of a function. | 10/12/2008 |
| Q: Please see the image attached. How do you work out the range and domain of functions in general? ... A: Questioner: Sally Category: Advanced Math Subject: Functions Hi, Please see the image ... | |
| Related rates | 10/11/2008 |
| Q: Below is my question, hope you can solve it. A water is in the shape of an inverted conical cone ... A: Questioner: Suj Category: Advanced Math Private: No Subject: Maths QuestionHi im Suj, ... | |
| Complex Analysis - Power series. | 10/9/2008 |
| Q: I didn't know how to edit the last question, so I just re-ask it here. Show SUM [d(n)*(z^n)] = SUM ... A: Questioner: John Category: Advanced Math Private: No Subject: Complex AnalysisHello, ... | |
| Divisibility | 10/6/2008 |
| Q: Prove by contradiction that there do not exist integers m and n such that 42m + 385n = 100. ANSWER: ... A: Questioner: Pete Category: Advanced Math Private: No Subject: DivisibilityProve by ... | |
| Divisibility | 10/6/2008 |
| Q: Prove by contradiction that there do not exist integers m and n such that 42m + 385n = 100. A: Questioner: Pete Category: Advanced Math Subject: Math Foundations-ProofsProve by ... | |
| Compound Interest | 10/4/2008 |
| Q: Calculate the accumulated balance of the following: a) £100 invested for 6 years at an effective ... A: Questioner: Chandni Category: Advanced Math Private: No Subject: finance and investment ... | |
| Solution with cube roots. | 10/3/2008 |
| Q: I am stuck on the following question and I am unable to identify the type of problem it could be. ... A: Questioner: Clarissa Category: Advanced Math Private: No Subject: unsure - law of ... | |
| Difference quotient | 10/2/2008 |
| Q: can you evaluate the function f(x)=x^3 + x at the independent variable f(x)-f(1)/x-1 A: Questioner: Martin Category: Advanced Math Private: No Subject: functionscan you evaluate ... | |
| Inequality Proofs | 10/1/2008 |
| Q: Prove that for all real numbers a,b,and c that bc+ac+ab (is less than or equal to) a^2+b^2+c^2 A: Questioner: Pete Category: Advanced Math Private: No Subject: Mathematical ProofsProve ... | |
| Trigonometric functions | 9/30/2008 |
| Q: A wheelchair ramp should have an angle less than 8 degrees to be considered safe. A ramp at a store ... A: Questioner: Jeannie Category: Advanced Math Private: No Subject: HELPA wheelchair ramp ... | |
| Area of a trapezoid | 9/28/2008 |
| Q: . i need your help on this trapzium question..it says: a trapezium has paraell sides of a and b with ... A: Questioner: umayr Category: Advanced Math Private: No Subject: area of a trapeziumhi ... | |
| polynomial functions | 9/28/2008 |
| Q: Thesketch the graph of the function. Determine the equation of the function. Describe the function ... A: Questioner: Vanessa Category: Advanced Math Private: No Subject: polynomial functionshi ... | |
| Trigonometric Identities | 9/27/2008 |
| Q: Q1:Find cos theta/2 given that sin theta=-12/13 and theta is in fourth quadrant? Q:Find sin theta/2 ... A: Questioner: ahmed Category: Advanced Math Private: No Subject: trigonometryQ1:Find cos ... | |
| Circumference and radius | 9/26/2008 |
| Q: The math books says to solve this word problem using variables. My teacher says to solve it by ... A: Questioner: Noel Category: Advanced Math Private: No Subject: Algebra II word problemThe ... | |
| Systems of linear equations | 9/25/2008 |
| Q: 2x-y+2Z=10 4X+2Y-5Z=10 X-3Y+5Z=8 A: Questioner: Reuben Feagin Category: Advanced Math Private: No Subject: solving systems of ... | |
| Limits and continuity | 9/25/2008 |
| Q: I have a limit that looks as such: lim x -> -3 (x^2-x+12) / (x+3). 1. When I sub in the -3 for x, I ... A: Questioner: Steph Category: Advanced Math Private: No Subject: Limit DilemmaHi I have a ... | |
| An 'average' paradox. | 9/24/2008 |
| Q: How do I solve this word problem:\ Player A has a higher batting average than player B for the ... A: Questioner: Sarah Private: no Subject:How do I solve this word problem:\ Player A has a higher ... | |
| Permutation Problem | 9/24/2008 |
| Q: Suppose you have members of six families which each consist of a mom, a dad, and a kid. How many ... A: Questioner: Jolene Category: Advanced Math Private: No Subject: Permutation ProblemSuppose ... | |
| Mixture puzzle | 9/23/2008 |
| Q: There are two 1-liter carafes of wine. One is red wine the other is white. First I took a tablespoon ... A: Questioner: sborosak Category: Advanced Math Private: No Subject: wine problemThere are ... | |
| Remainder arithmetic | 9/22/2008 |
| Q: Hey Paul, I have another question related to the previous one. (page 489 is mental note to myself ... A: Questioner: Emily Category: Advanced Math Private: No Subject: Another find p questionHey ... | |
| Trig identities | 9/22/2008 |
| Q: OK, so I have a few problems that I'm stuck on>>>>>>>>>>>> This is from my trig book: "Use ... A: Questioner: Sohail Category: Advanced Math Private: No Subject: Trig identitiesOK, so I ... | |
| Quadratic functions | 9/22/2008 |
| Q: how to answer thisIn 2000, the average income (I)for a doctor aged(x)years could be modeled by I(x)= ... A: Questioner: Migs Category: Advanced Math Private: No Subject: Quadratic functionshow to ... | |
| Perpendicular lines. | 9/21/2008 |
| Q: Hey paul, sorry to bother you with another math question. (page 522) In the xy-plane, line L passes ... A: Questioner: Emily Category: Advanced Math Private: No Subject: Two Lines intersectionHey ... | |
| Division algorithm | 9/21/2008 |
| Q: Hey Paul (page 523) When 15 is divided by the positive integer k, the remainder is 3. For how many ... A: Questioner: Emily Category: Advanced Math Private: No Subject: How many different values ... | |
| Rearrange a Formula | 9/21/2008 |
| Q: Paul, I am seeking to use the following Daniels/Gilbert formula which uses velocity (m/min) and time ... A: Questioner: Steve Category: Advanced Math Private: No Subject: Rearrange a FormulaPaul, I ... | |
| Repost question (logarithm/indices/equations) | 8/2/2008 |
| Q: This is a repost question. Can you tell me how do I solve equations like : 1.06^n = 1.005^(12n) + ... A: This is a repost question. Can you tell me how do I solve equations like : 1.06^n = 1.005^(12n) + ... | |
| Finding the sum of a subset | 7/29/2008 |
| Q: I have a small list of numbers and a result. I would like excel to find a certain combination of ... A: Questioner: Anthony Category: Advanced Math Private: No Subject: Finding the sum of a ... | |
| Maximum-minimum problems | 6/24/2008 |
| Q: I have a variation on the peach orchard problem. What if the average yield per tree is 100 pounds ... A: Questioner: Rebecca Savell Category: Advanced Math Private: No Subject: CalculusI have a ... | |
| Systems of linear equations | 6/20/2008 |
| Q: A company manufactures Two products X and Y by means of two processes A and B. The maximum capacity ... A: Questioner: Craig Ferguson Category: Advanced Math Private: No Subject: SIMULTANIOUS ... | |
| Geometric sequence | 6/19/2008 |
| Q: 2,4,16,64,256...how to find the nth term of this series.. i want a general formula of this series ... A: Questioner: sunny Category: Advanced Math Private: No Subject: Formula For series of ... | |
| Balance & Measuring Puzzle | 6/18/2008 |
| Q: I was looking through allexperts and was wondering if you could help me with this problem as I see ... A: Questioner: Steven Simpson Category: Advanced Math Private: No Subject: Balance & ... | |
| Volumes by disks. | 6/17/2008 |
| Q: Sorry didn't mean to put it on private before, i have two questions about solid of revolution, from ... A: Questioner: James Category: Advanced Math Private: No Subject: Solid of revolution ... | |
| Exponent rules | 6/17/2008 |
| Q: If p=a^x, q=a^y and a^2=(p^yq^x)^z what is xyz? what is the solution? in a^x (x is the exponent) A: Questioner: Hannah Category: Advanced Math Private: No Subject: algebraIf p=a^x, q=a^y and ... | |
| solving formulas | 6/16/2008 |
| Q: i'm taking a semester of college algebra and i need help with getting started on this problem. ... A: Questioner: angel Category: Advanced Math Private: No Subject: solving formulasi'm taking ... | |
| Linear equations | 6/15/2008 |
| Q: I am having trouble coming up with the proper equation for the following: a. Suppose that a market ... A: Questioner: Vickie Category: Advanced Math Private: No Subject: Polynomial word problemsI ... | |
| Counting principle | 6/15/2008 |
| Q: 1. There are 10 empty places in a crossword type puzzle. each empty place has 2 or 3 choices. (6 ... A: Questioner: Munir Category: Advanced Math Private: No Subject: crossword type puzzle1. ... | |
| Linear equations. | 6/1/2008 |
| Q: the graph shows the straight line with equation Y = 3x -4 . A point on the line Y=3x-4 has an ... A: Questioner: laurie Category: Advanced Math Private: No Subject: co-ordinates and ... | |
| Harmonical Progression | 6/1/2008 |
| Q: Three Quantities a,b,c are said yo be in harmonical progression when a/c = a-b/b-c Prove, is a+b/2, ... A: Questioner: Brent Category: Advanced Math Private: No Subject: Harmonical ProgressionThree ... | |
| Conditional probability | 5/31/2008 |
| Q: A container A contains 6 red and 4 green spheres, whereas a second container B contains 7 red and 3 ... A: Questioner: Yannis Category: Advanced Math Private: No Subject: Difficult Probability ... | |
| Sequences - arithmetic, geometric | 5/30/2008 |
| Q: If a, b, and c form an aritmetic sequence, show that the equation(b-c)x^2+(c-a)x+(a-b)=0 has equal ... A: Questioner: Patrick Category: Advanced Math Private: No Subject: SequenceIf a, b, and c ... | |
| Eisenstein's Criterion | 5/29/2008 |
| Q: I am a first year algebra student and my teacher gave us challenge question. We are able to use what ... A: Donna, In your example: F(x) = x^5 + 4x^3 + 20x + 2 you have an x^5 term but no x^4 term. Since ... | |
| Sequences - arithmetic, geometric | 5/29/2008 |
| Q: I need help with this question, Find an arithmetic sequence with first term 1, common difference not ... A: Questioner: Patrick Category: Advanced Math Private: No Subject: SequencesHi, I need help ... | |
| figure out minutes within time | 5/28/2008 |
| Q: how would i figure out the number of minutes that have passed between say 19:00:34 and 20:07:02 ... A: Paul, THANKS for the quick reply. One more question, sorry, why do you have to have the exchanged ... | |
| Eisenstein's Criterion | 5/28/2008 |
| Q: I am a first year algebra student and my teacher gave us challenge question. We are able to use what ... A: Questioner: Donna Category: Advanced Math Private: No Subject: Eisenstein's Criteria for ... | |
| figure out minutes within time | 5/28/2008 |
| Q: how would i figure out the number of minutes that have passed between say 19:00:34 and 20:07:02 ... A: Questioner: John Category: Advanced Math Private: No Subject: figure out minutes within ... | |
| Nonlinear simultaneous equations | 5/27/2008 |
| Q: Please could you help me work out the equation and show how you have done it. Y=11x+3 Y=4xSquared ... A: Questioner: daryl Category: Advanced Math Private: No Subject: Advanced simultaneous ... | |
| Law of Cosines | 5/26/2008 |
| Q: The question is to measure a inaccessible point. If, lets say one point is on the other side of a ... A: Questioner: DRICUS Category: Advanced Math Private: No Subject: triangleationThe question ... | |
| Probability | 5/26/2008 |
| Q: You are dealt a 13 card bridge hand from a 52 card bridge deck. a. What is the probability that you ... A: Questioner: Joel Category: Advanced Math Private: No Subject: ... | |
| Completing the square. | 5/25/2008 |
| Q: (a+b)^2=a^2+2ab+b^2 Can you please explain in easy english about what this formula is for and how it ... A: Questioner: Mehru Category: Advanced Math Private: No Subject: Algebra(a+b)^2=a^2+2ab+b^2 ... | |
| Parametric equations | 5/25/2008 |
| Q: It is my understanding that speed is the absolute value of velocity. But then how do I find the ... A: Questioner: sami Category: Advanced Math Private: No Subject: parametric functionHi Paul, ... | |
| Logarithmic equations | 5/24/2008 |
| Q: I am doing a math project and I have to set this equation equal to one another and solve for t using ... A: Questioner: Alexis Category: Advanced Math Private: No Subject: AlgebraI am doing a math ... | |
| Trigonometric identities | 5/24/2008 |
| Q: Prove the following identities Cos2θ≡Cos^4θ-Sin^4θ ... A: Questioner: Henoc Category: Advanced Math Private: No Subject: Trig IdentitiesProve the ... | |
| Standard Deviation | 5/23/2008 |
| Q: Eldon received 72 on his first calculus test. The marks were normally distributed with a mean of 60 ... A: Questioner: Joel Category: Advanced Math Private: No Subject: Standard DeviationEldon ... | |
| Integration by Partial Fractions | 5/23/2008 |
| Q: Give that 7x-x^2 /(2-x) (x^2 +1) = A/(2-x) + Bx+C/(x^2 +1), determine the values of A,B and C. A ... A: what do u mean by left and right hand boundaries? Is it the limits at which you integrate? If that ... | |
| Integration by Partial Fractions | 5/22/2008 |
| Q: Give that 7x-x^2 /(2-x) (x^2 +1) = A/(2-x) + Bx+C/(x^2 +1), determine the values of A,B and C. A ... A: Questioner: jenny Category: Advanced Math Private: No Subject: Further Integration (i ... | |
| Logarithms | 5/22/2008 |
| Q: use five-place logarithmictables for this question. In questions 1 to 4 find the value of the given ... A: Questioner: stevens Category: Advanced Math Private: No Subject: Logarithmsuse five-place ... | |
| Sequences - arithmetic, geometric | 5/22/2008 |
| Q: I'm not sure where to start with thisThree numbers form an arithmetic sequence, the common ... A: Questioner: Patrick Category: Advanced Math Private: No Subject: SequencesHi Paul, I'm not ... | |
| Quadratic functions | 5/21/2008 |
| Q: At school i just started learning about the 'Turning Point Form' I can do most of the stuff like ... A: Questioner: jordan Category: Advanced Math Private: No Subject: Turning Point Formhi, At ... | |
| Series - convergence | 5/21/2008 |
| Q: How do I find the sum of the series 2+sqrt(2)+cuberoot(2)+fourthroot(2)+... if it exists. Thanks! A: Questioner: vince Category: Advanced Math Private: No Subject: seriesHi Paul, How do I ... | |
| Trigonometric equations | 5/20/2008 |
| Q: Use identities for cos (C+D) and cos (C-D) to prove that cos A + cos B = 2cos((A+B)/2)cos((A-B)/2). ... A: Questioner: Eliza Category: Advanced Math Private: No Subject: Trig functionsUse ... | |
| Average value of a function. | 5/20/2008 |
| Q: Please help~ A manufacturer who sells to customer located within R km of his mill charges a per ... A: Questioner: Fung wai wing Category: Advanced Math Private: No Subject: Application of ... | |
| Integral of inverse trig functions | 5/19/2008 |
| Q: I need the proofs of intergration of du/squareroot(a^2-u^2) intergration of du/a^2+u^2 intergration ... A: Questioner: Heidi Category: Advanced Math Private: No Subject: proofs for integrals ... | |
| Taylor Series | 5/19/2008 |
| Q: I don't know how I'm supposed to make sum formula from function: f(x)=e(^x^2)+1) X0=0(I added in ... A: Questioner: Liva Category: Advanced Math Private: No Subject: ... | |
| question on a number to the 180th power | 5/19/2008 |
| Q: Question on an equation. the result answer is: (1.00375)^180 power I don't have a "high technical ... A: Questioner: Christina Category: Advanced Math Private: No Subject: question on a number to ... | |
| Ratios | 5/17/2008 |
| Q: A High School had an enrolment of 1150 pupils. The ratio of boys to girls was 23:27. a. How many ... A: Questioner: Kieren Category: Advanced Math Private: No Subject: maths ratiosA High School ... | |
| Functions and polynomials. | 5/16/2008 |
| Q: I was wondering if you could help me with a few pre-calc problems that i just can't seem to get ... A: Questioner: Luke Category: Advanced Math Private: No Subject: Pre-CalculusI was wondering ... | |
| Conditional probability | 5/16/2008 |
| Q: A test correctly identifies a disease in 95% of people who have it. It correctly identifies no ... A: Questioner: Wendy Category: Advanced Math Private: No Subject: Probability and StatisticsA ... | |
| Binomial expansion. | 5/16/2008 |
| Q: When Susan and Jessica play a card game, Susan wins 60% of the time. If they play 9 games, what is ... A: Questioner: Wendy Category: Advanced Math Private: No Subject: ProbabilityWhen Susan and ... | |
| Ratios | 5/15/2008 |
| Q: This information is on a packet of macaroni cheese. Per 100g- protein 3.3g, Fat 5.3g, ... A: Questioner: Kieren Category: Advanced Math Private: No Subject: maths ratiosThis ... | |
| Binomial expansion. | 5/14/2008 |
| Q: In a pile of 40 oranges, 10 are rotten. What is the probability of getting at least 3 rotten oranges ... A: Questioner: jagdeep Category: Advanced Math Private: No Subject: probabilityIn a pile of ... | |
| Linear Programming | 5/14/2008 |
| Q: Consider the following linear programming problem MIN Z = 10x1 + 20x2 Subject to:x1 + x2 >= ... A: Questioner: Jenna Category: Advanced Math Private: No Subject: Linear ProgrammingConsider ... | |
| probability | 5/14/2008 |
| Q: In a pile of 40 oranges, 10 are rotten. What is the probability of getting at least 3 rotten oranges ... A: Questioner: jagdeep Category: Advanced Math Private: No Subject: probabilityIn a pile of ... | |
| Trigonometric functions - definitions | 5/13/2008 |
| Q: How can you prove that sin theta divided by cos theta equals tan theta? Please explain in details I ... A: Questioner: flor Category: Advanced Math Private: No Subject: trigonometryHow can you ... | |
| Probability of Independent Events | 5/12/2008 |
| Q: On a multiple-choice test of 10 questions, each question has 5 possible answers. A student is ... A: Questioner: Joel Category: Advanced Math Private: No Subject: Probability and statisitcsOn ... | |
| Trigonometry | 5/11/2008 |
| Q: A regular polygon of n sides is inscribed in a circle of radius r. If the area of the polygon is ... A: Questioner: Patrick Category: Advanced Math Private: No Subject: TrigonometryA regular ... | |
| Mathematical induction | 5/11/2008 |
| Q: I am doing Graduation.Tomorrow i have mathmatics paper. I have problem in two Question of ... A: Questioner: Hira Mirza Category: Advanced Math Private: No Subject: Mathematical ... | |
| Trigonometric equations | 5/10/2008 |
| Q: Find the sum of the roots tan^2x-9tan+1=0. Do I factor? If so where do I start? A: Questioner: Patrick Category: Advanced Math Private: No Subject: TrigonometryFind the sum ... | |
| Functional notation | 5/10/2008 |
| Q: Please assist me with this problem."Evaluate the functions for the values of x given as 1, 2, 4, 8, ... A: Questioner: TC Category: Advanced Math Private: No Subject: AlgebraPlease assist me with ... | |
| Basic functions | 5/9/2008 |
| Q: I'm having a hard time with this question, I think I'm over thinking it. Can you please help me? The ... A: Questioner: TC Category: Advanced Math Private: No Subject: Advanced AlgebraI'm having a ... | |
| plane trigonometry | 5/9/2008 |
| Q: GOOD DAY! I'm having trouble answering these questions ,can you check it for me...the more i try ... A: Questioner: grace Category: Advanced Math Private: No Subject: plane trigonometryGOOD DAY! ... | |
| Inverses of functions. | 5/8/2008 |
| Q: How would I go about answering this question, "Give an example of an exponential function. Find this ... A: Questioner: Iyana Category: Advanced Math Private: No Subject: Advanced Algebra Hi, ... | |
| Basic trigonometry | 5/8/2008 |
| Q: can you help with this,if ive done something wrong with it pls do correct it... thanks have a nice ... A: Questioner: grace Category: Advanced Math Private: No Subject: plane trigonometryhello ! ... | |
| Inequalities - graphing | 5/8/2008 |
| Q: I need help solving the following problem: Directions: Graph the inequality. Problem: 9x is less ... A: Questioner: Anna Category: Advanced Math Private: No Subject: 6th grade Algebra 1 honorsI ... | |
| Trigonometric identities | 5/7/2008 |
| Q: If x=acos0-bsin0 and y=asin0+bcos0, show that x^2+y^2=a^2+b^2 (0 equals the symbol theta). Where ... A: Questioner: Patrick Category: Advanced Math Private: No Subject: sin and cosineIf x = a ... | |
| plane trigonometry | 5/7/2008 |
| Q: i dont wanna mis it again ,can you check my answer pls.if ive something wrong with this pls help me ... A: 1. I think your diagram is : |\Man | \ | \ r | \ 550 | \ | 36\ ... | |
| plane trigonometry | 5/6/2008 |
| Q: i dont wanna mis it again ,can you check my answer pls.if ive something wrong with this pls help me ... A: Questioner: arthur Category: Advanced Math Private: No Subject: plane trigonometryi dont ... | |
| plane trigonometry | 5/6/2008 |
| Q: 10please help me again please please please thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!! use the method in ... A: Questioner: grace Category: Advanced Math Private: No Subject: plane trigonometryplease ... | |
| Complex numbers - DeMoivre's Thm | 5/4/2008 |
| Q: Please see the image attached. I am currently studying A level Maths. Thank you for your time. A: Questioner: jenny Category: Advanced Math Private: No Subject: complex numbers ... | |
| Slope of a Line | 5/4/2008 |
| Q: Is the slope of this line: 3x - 5y = -15 - 3/15 ? Thanks, Julie A: Questioner: Julie Category: Advanced Math Private: No Subject: algebraDear Paul, Is the ... | |
| Logarithms | 5/4/2008 |
| Q: I am studying engineering maths, but this question is not to do with speciality engineering maths, ... A: Questioner: Jebraan Category: Advanced Math Private: No Subject: LogarithmsHi, I am ... | |
| Trigonometric identities | 5/3/2008 |
| Q: cos^-1(x) + cos^-1(2x) = 60 Using trial and error x = (1/2) there could be others ... A: Questioner: grace Category: Advanced Math Private: No Subject: plane trigonometryplane ... | |
| Law of Tangents.(!!) | 5/2/2008 |
| Q: can you give it a try use the logarithms and the law of tangents to solve the triangle ABC,given ... A: Questioner: grace Category: Advanced Math Private: No Subject: plane trigonometrycan you ... | |
| Basic units | 5/2/2008 |
| Q: 720miles per day equals how many miles per minute A: Questioner: judith Category: Advanced Math Private: No Subject: math720miles per day ... | |
| Basic differentiation. | 4/30/2008 |
| Q: Use the result of y=4x^7 to find dy/dx A: Questioner: Neel Category: Advanced Math Private: No Subject: MathUse the result of y=4x^7 ... | |
| Ellipses in standard form | 4/29/2008 |
| Q: which one of the following ellipses has its center at the point C(2,1) this is what ive tried to ... A: Questioner: stahn Category: Advanced Math Private: No Subject: analytical geometrywhich ... | |
| Basic differentiation. | 4/9/2008 |
| Q: what are the critical point for the function 2+x-2xsquared-x to the power of 3? A: Questioner: Jules Category: Advanced Math Private: No Subject: Not surewhat are the ... | |
| Recurrence Relations | 4/4/2008 |
| Q: I know something and I'm looking for a proof of it. Consider this recurrence relation. ... A: Questioner: Ali Category: Advanced Math Private: No Subject: Recurrene RelationsI know ... | |
| Quadratic functions | 4/4/2008 |
| Q: Prove that the optimum value of y=((x-a)^2)+((x-b)^2) occurs when x=(a+b)/2. I have no idea where to ... A: Questioner: Patrick Category: Advanced Math Private: No Subject: QuadraticsProve that the ... | |
| Logarithmic equations | 4/3/2008 |
| Q: How would I solve 1.98^2x=2 ? I know how to set it up: X = log 2 / 2log 1.98 But I can not seem ... A: Questioner: Bella Category: Advanced Math Private: No Subject: Log ProblemDear Paul, How ... | |
| Quadratic equation disguised. | 4/2/2008 |
| Q: For the following relation determine the value of y in terms of x: 4x^2-4xy+y^2-2x+y-6=0 A: Questioner: Patrick Category: Advanced Math Private: No Subject: Math QuestionFor the ... | |
| Complex Numbers | 4/1/2008 |
| Q: Howdy Paul, here are four questions I have & if you can show me the steps to the answers I will send ... A: Questioner: Rich Category: Advanced Math Private: No Subject: Complex NumbersHowdy Paul, ... | |
| Conic section - hyperbola. | 4/1/2008 |
| Q: Two friends live 4 miles apart and on the same east-west street, and you live halfway between them. ... A: Questioner: mindi Category: Advanced Math Private: No Subject: precalcTwo friends live 4 ... | |
| Logarithmic equations | 3/31/2008 |
| Q: using the equation: I = 0.8[1-10^(-0.0434t)] after ,t, sec a) what is the current after 5 s b) ... A: Questioner: khaleel Category: Advanced Math Private: No Subject: equationsusing the ... | |
| Equation of a line. | 3/31/2008 |
| Q: I have two questions for you can you help me solve them and then show me how you solved it. ... A: Questioner: Cornelius Category: Advanced Math Private: No Subject: Pre-CalculusI have two ... | |
| Related Rates | 3/30/2008 |
| Q: A circular oil slick is expanding on the water such that its area is increasing at a rate of ... A: Questioner: khaleel Private: no Subject:hi, A circular oil slick is expanding on the water such ... | |
| Related Rates | 3/30/2008 |
| Q: A circular oil slick is expanding on the water such that its area is increasing at a rate of ... A: Questioner: khakeel Category: Advanced Math Private: No Subject: composite functionshi, A ... | |
| Logarithmic equations | 3/30/2008 |
| Q: So I am stumped on how to solve these Logs: 12. log5(x - 1) + log5(x - 2) - log5(x + 6) = 0 13.a) ... A: Questioner: khaleel Category: Advanced Math Private: No Subject: LogarithmsSo I am stumped ... | |
| Trigonometric functions of 30,60,45 | 3/27/2008 |
| Q: The question is.. Use the sum and difference formulas and the sin2x and cos2x to express sinx^0 ... A: Questioner: Maham Category: Advanced Math Private: No Subject: Help needed asap!The ... | |
| Quadratic functions | 3/25/2008 |
| Q: after a jump from a plane the height (in metres) of a skydiver above the ground is given by ... A: Questioner: jessie Category: Advanced Math Private: No Subject: quadratic problemsafter a ... | |
| Slope of a Line | 3/25/2008 |
| Q: Paul Klarreich, What is the slope of the line 2x + 5y = 10 ? Thanks so much for your time & ... A: Questioner: Celine Category: Advanced Math Private: No Subject: Slope of the LineDear Mr. ... | |
| Square Roots - Basic | 3/21/2008 |
| Q: Simplify completely: 1. sqrt25x^y Find the principle root: 2. sqrt100 3. sqrt36 4. -sqrt9 5. ... A: Questioner: Sierra Category: Advanced Math Private: No Subject: Square Roots ... | |
| Simultaneous equations | 3/20/2008 |
| Q: 2.) Find the values of x and y that solve the following system of equations:We call the two numbers ... A: Questioner: Sherry Category: Advanced Math Private: No Subject: College Algebra ... | |
| Quadratic equations. | 3/19/2008 |
| Q: I am resending the question with more information. Can you tell me if I am doing this correctly? ... A: Questioner: Heather Category: Advanced Math Private: No Subject: equationsHi. I am ... | |
| Basic verbal problems. | 3/19/2008 |
| Q: the math club orders 2 cases of juice and 3 of water for a total of $20.00 the science club orders ... A: Questioner: bill Category: Advanced Math Private: No Subject: algebra problemthe math club ... | |
| Basic equations | 3/18/2008 |
| Q: How do I solve the following equation: 4x = 5 = 3(2x + 7) A: Questioner: Heather Category: Advanced Math Private: No Subject: equationsHow do I solve ... | |
| Trigonometric functions - graphs | 3/16/2008 |
| Q: a ferris wheel has a radius of 22 feet and has a clearance of 4 feet at the bottom. it is turning ... A: Questioner: moniclaws Category: Advanced Math Private: No Subject: advaced algebra 2/triga ... | |
| Polynomials - graphing | 3/15/2008 |
| Q: how can i find the graph & the equation for these two statements: - An odd-degree function with ... A: Questioner: lina Category: Advanced Math Private: No Subject: polynomialshi how can i ... | |
| Convergence of geometric series. | 3/14/2008 |
| Q: I want to calculate flow rate through a filter system where the incoming flow rate is constant and ... A: Questioner: Chris Private: no flow loopI want to calculate flow rate through a filter system ... | |
| Exponential equation. | 3/14/2008 |
| Q: i have been asked to solve 2^(33-x)=3^(2x-1) for x. i have taken logs to both sides and rearranged ... A: Questioner: adam Category: Advanced Math Private: No Subject: logshi Paul, i have been ... | |
| Sine and cosine graphs. | 3/13/2008 |
| Q: I originally thought that by replacing the unit circle's x values with radians/degrees and keeping ... A: Questioner: Bennett Category: Advanced Math Private: No Subject: How sin and cos graphs ... | |
| Verbal problems -Rate, Time, Distance | 3/13/2008 |
| Q: This is a homework question I received earlier this week. The teacher didn't explain it so that I ... A: Questioner: Charlotte Category: Advanced Math Private: No Subject: Algebra - DistanceThis ... | |
| Basic factoring. | 3/11/2008 |
| Q: 2x squared + 15x + 7. Please help me. Thank you. A: Questioner: Haley Private: noHi my name is Haley and I am confused on how to factor this problem ... | |
| Unit conversions. | 3/10/2008 |
| Q: how many gallons in a four foot square cube? A: Questioner: Ardith Category: Advanced Math Private: No Subject: mathhow many gallons in a ... | |
| The fuse-box function. | 3/8/2008 |
| Q: I don't know the answer to this at all 3(x+15) (x-2) = what Show me each step > ... A: Questioner: Jodi Category: Advanced Math Private: No Subject: Algebra question from my ... | |
| Trigonometric functions and vectors. | 3/7/2008 |
| Q: A person who can row 2.6 mph in still water wants to row due east across a river. The river is ... A: Questioner: Richard Category: Advanced Math Private: No Subject: Vectors ... | |
| Symmetry And Coordinate Graphs | 3/7/2008 |
| Q: I have quite a few questions but i need them tonight i could really use your help i am struggling ... A: Questioner: David Vacha Category: Advanced Math Private: No Subject: Symmetry And ... | |
| Adjacency Matrix | 3/6/2008 |
| Q: I am currently taking part in a computer course, and have to retake a maths exam, as i failed the ... A: Questioner: jason williams Category: Advanced Math Private: No Subject: Adjacency MatrixI am ... | |
| Parametric equations | 3/5/2008 |
| Q: The quarterback of a football team releases a pass at a height, h, of 7ft above the playing field, ... A: Questioner: Kumi Category: Advanced Math Private: No Subject: Parametric equations ... | |
| Maximum-minimum problem. | 3/4/2008 |
| Q: An orchard contains 53 peach trees with each tree yielding an average of 51 peaches. For each 3 ... A: Questioner: Melinda Category: Advanced Math Private: No Subject: CalculusAn orchard ... | |
| Dijkstra's Algorithm | 3/3/2008 |
| Q: I am currently taking part in a computer course, and have to retake a maths exam, as i failed the ... A: Questioner: jason williams Private: no I am currently taking part in a computer course, and have ... | |
| Factoring quadratic equations | 3/3/2008 |
| Q: What makes certain quadratic equations unfactorable? A: Questioner: Heather Category: Advanced Math Private: No Subject: quadratic equationsWhat ... | |
| Trigonometric equations | 2/29/2008 |
| Q: The problem is: Solve, where 0deg<=x<=360deg. I need to round the approximate solution(s) to the ... A: Questioner: Douglas Category: Advanced Math Private: No Subject: Trigonomic equationsThe ... | |
| Remainder Theorem | 2/28/2008 |
| Q: The remainder of the division of a polynomial A(x) by ( x+1) is 3 and that by (x-3) is 23. find the ... A: Questioner: metalx Category: Advanced Math Private: No Subject: polynomial remainder ... | |
| Trigonometric functions of 30,60,45 | 2/26/2008 |
| Q: It says: "Use the appropriate formula to find the exact value of the following expression: ... A: Questioner: Rich Category: Advanced Math Private: No Subject: Formula ExpressionHi this is ... | |
| Trigonometric identities | 2/26/2008 |
| Q: "Show by counter example that the folowing expression is not an identity: ... A: Questioner: Rich Category: Advanced Math Private: No Subject: IndentitiesHi I have a ... | |
| Complex numbers - Euler Formula | 2/24/2008 |
| Q: Ok, so this is what I have to do. I have to make a chart of the real and imaginary numbers and graph ... A: Questioner: Jaden Category: Advanced Math Private: No Subject: How to start the ... | |
| Angles of a triangle | 2/17/2008 |
| Q: in rigth triangle XYZ, one angle =70 degrees. what is the measure of the smallest angle? A: Questioner: kelvin Category: Advanced Math Private: No Subject: geometric conversionin ... | |
| Trigonometric equations | 2/16/2008 |
| Q: the question ask that i use trig identities to solve the following and to give the answer in radians ... A: Questioner: melissa Category: Advanced Math Private: No Subject: trigthe question ask that ... | |
| Parabola | 2/15/2008 |
| Q: I need to solve the inequality x(x-2)>3 by using graph f(x)=x^2-2x-3. Find x intercepts and vertex. ... A: Questioner: Amber Category: Advanced Math Private: No Subject: precalcI need to solve the ... | |
| Functions and relations. | 2/14/2008 |
| Q: having problems answering this question. Task Determin whether each relation is a function. In ... A: Questioner: juan lopez Category: Advanced Math Private: No Subject: algebrahaving problems ... | |
| Plane Trigonometry | 2/13/2008 |
| Q: Simplify : a) ( sin 80°- sin 10° )/(sin 80° + sin 10° ) b) ( sin 130° + sin 20° )/( cos 130° + ... A: Questioner: Mario Category: Advanced Math Private: No Subject: Plane TrigonometrySimplify ... | |
| Quadratic equations and their applications | 2/13/2008 |
| Q: This has been the most painful course I have ever lived through. I really want to understand and I ... A: Questioner: Anna Category: Advanced Math Private: No Subject: Quadratic equations and ... | |
| Trigonometric equations | 2/12/2008 |
| Q: How do you solve 4 sin2 u = 3? 2 cos2 u-7 cos u +3 = 0 NOTE: 2 following sin and cos are ... A: Questioner: Theresa Category: Advanced Math Private: No Subject: TrigonometicsHow do you ... | |
| Asymptotes | 2/11/2008 |
| Q: In the rational funtion F(x)= x-1/x-x^3 I am attempting to locate the asymptotes Do I rearrange ... A: Questioner: Jessica Category: Advanced Math Private: No Subject: AsymptotesIn the rational ... | |
| Point-slope form. | 2/8/2008 |
| Q: Given the slope of the line, find the equation for each line. a) A line of slope 4 passing through ... A: Questioner: Robert Category: Advanced Math Private: No Subject: SlopesGiven the slope of ... | |
| Definition of an identity,. | 2/8/2008 |
| Q: I was presented with the following problem: Identify what type of equation this is: 7x/x = 7. Based ... A: Questioner: Dawn Category: Advanced Math Private: No Subject: types of equationsI was ... | |
| Trigonometry - sums to products. | 2/7/2008 |
| Q: Solve each of the following equations for 0<t<pi giving all answers exactly in terms of pi. (where ... A: Questioner: Jamie Category: Advanced Math Private: No Subject: TrigonometrySolve each of ... | |
| Reducing fractions. | 2/7/2008 |
| Q: I am working on 4 Algebra 1 problems and I cannot come to the correct answer, and don't know what I ... A: Questioner: Janine Category: Advanced Math Private: No Subject: Algebra 1I am working on 4 ... | |
| Maximum-minimum problem. | 2/6/2008 |
| Q: A farmer from the Borders is taking as many of sheep to market as can possibly be penned in with 40 ... A: Questioner: Henoc Category: Advanced Math Private: No Subject: max problems, areas...A ... | |
| Binomial expansion. | 2/5/2008 |
| Q: a) Write down the general term in the power series expansion of (x^2 - 2/x)^18 Hence find the term ... A: Questioner: Chloe Category: Advanced Math Private: No Subject: Seriesa) Write down the ... | |
| Parabola | 2/2/2008 |
| Q: What is the y coordinate of the vertex of the parabola y=x^2-6x+14 A: Questioner: sue hanneken Category: Advanced Math Private: No Subject: algebraWhat is the y ... | |
| Unit conversions. | 1/31/2008 |
| Q: what is the diameter of a 5-inch pipe in centimeters? what is its radius in millimeters? If I weigh ... A: Questioner: Alex Category: Advanced Math Private: No Subject: measurements and ... | |
| Distance | 1/30/2008 |
| Q: I am writing you because I need help with the following problem. I hope you can help me. Thank you ... A: Questioner: gio Category: Advanced Math Private: No Subject: Math problem (hot balloon)Hi, ... | |
| Basic Percentage | 1/30/2008 |
| Q: I cannot understand on how to solve these 2 problems. 1. What percentage of 70 is 5? 2. What number ... A: Questioner: Robert Category: Advanced Math Private: No Subject: PercentageI cannot ... | |
| scientific notations & significant figures | 1/29/2008 |
| Q: (3.200 x 10^3)(7.2 x 10^-5) i must give the answer with the correct number of significant figures. ... A: Questioner: alex Category: Advanced Math Private: No Subject: scientific notations & ... | |
| Difference Quotient | 1/29/2008 |
| Q: can you help me with finding the difference quotient for the function, f(x)= x/x-2? Thanks a bunch. A: Questioner: Kenton Category: Advanced Math Private: No Subject: Difference QuotientHi, can ... | |
| Permutations with repeated elements. | 1/27/2008 |
| Q: Also where I have used incorrect notation could you please show me where I have gone wrong. Qu1 A ... A: Questioner: John Category: Advanced Math Private: No Subject: Permutationshi i've been ... | |
| Logarithmic expressions. | 1/27/2008 |
| Q: I want to solve for the ratio x/y or y/x for the logarithmic equation below where c is a constant. ... A: Questioner: Josey Category: Advanced Math Private: No Subject: How to calculate complex ... | |
| Trigonometric identities | 1/25/2008 |
| Q: im really stuck on this identity, (tanx+tany)(1-cotxcoty) + (cotx+coty)(1-tanxtany)=0 anyone help ... A: Questioner: mike Category: Advanced Math Private: No Subject: Identitiesim really stuck on ... | |
| 10th grade math question | 1/25/2008 |
| Q: I understand the basics, but don't knowhow to do the fraction. Thank you so much for your help. ... A: Questioner: Dillan Category: Advanced Math Private: No Subject: 10th grade math questionI ... | |
| Rates of change | 1/24/2008 |
| Q: ! THANKS SO MUCH!!! US population (in millions), 1790–-1990 Year Population Year ... A: Questioner: Joan Category: Advanced Math Private: No Subject: Calculus help fast!!!Hello i ... | |
| Law of Cosines | 1/24/2008 |
| Q: Find each measure using the given measures. Round to the nearest tenth. Q1: Find f if g = 15, h = ... A: Questioner: Kimberly Category: Advanced Math Private: No Subject: trigonometryFind each ... | |
| Maximum-minimum problem. | 1/23/2008 |
| Q: I just had another question or two about my algebra homework. It has to do with functions again. 1. ... A: Questioner: Carly Category: Advanced Math Private: No Subject: functionsHi again. I just ... | |
| inflection points | 1/22/2008 |
| Q: How many inflection points does the graph of y=sin(x)-1/3.sin(3x)-1/5.sin(5x) have on the interval ... A: Questioner: vince Category: Advanced Math Private: No Subject: inflection pointsHi Paul, ... | |
| trig | 1/21/2008 |
| Q: Can you please help me with these problems! they are based on trig idenities. Use sum formula.. 1. ... A: Questioner: dana Private: noI'm sorry I'm still very confused on the following problems please ... | |
| Difference quotient | 1/21/2008 |
| Q: I need step by step directions on how to solve this: Find f(x+h)-f(x)/h if f(x)=7x(squared) +5x-14. ... A: Questioner: Bonnie Category: Advanced Math Private: No Subject: Help solving functionsI ... | |
| Logarithmic expressions. | 1/20/2008 |
| Q: Algorithm A uses 20n·log(n) operations, while algorithm B uses n^3 . Determine the value n0 such ... A: Questioner: Linda Category: Advanced Math Private: No Subject: Big OHi, Algorithm A uses ... | |
| Basic simplification. | 1/20/2008 |
| Q: solve this and show working 3b + 4 = 30 A: Questioner: martin Category: Advanced Math Private: No Subject: mathsolve this and show ... | |
| trig | 1/18/2008 |
| Q: Can you please help me with these problems! they are based on trig idenities. Use sum formula.. 1. ... A: Questioner: dana Category: Advanced Math Private: No Subject: trigCan you please help me ... | |
| Trigonometric identities | 1/18/2008 |
| Q: tan^2x (1/ sec^2x) = 1 - 1/sec^2x A: Questioner: rashi asthana Category: Advanced Math Private: No Subject: trig ... | |
| Composite Functions - decomposing | 1/17/2008 |
| Q: Im just having trouble with one of my math problems...it says: Suppose that g(x)=2x+1 ... A: Questioner: Carly Category: Advanced Math Private: No Subject: Algebra..functionsHi! Im ... | |
| Equations | 1/15/2008 |
| Q: Solve the equation ay/x = cz for each of the following variables: a. y b. z c. x A: Questioner: Robert Category: Advanced Math Private: No Subject: EquationsSolve the ... | |
| Trigonometric identities | 1/12/2008 |
| Q: How do I prove the foll: (1/sec2A-cos2A + 1/cosec2A-sin2a)*cos2Asin2A=(1-cos2Asin2a)/(2+cos2Asin2A) ... A: Questioner: Pranav Category: Advanced Math Private: No Subject: TrigonometryHow do I prove ... | |
| Quantifiers. | 1/9/2008 |
| Q: me again! Another question - can you help? It's attached in the image? A: Sam, IF you are going to send stuff with special symbols, you have to include definitions of them. ... | |
| Graph Relations | 1/9/2008 |
| Q: I have a bit of trouble understanding what the question is asking, exactly? What type of relation is ... A: Questioner: Sam A Category: Advanced Math Private: No Subject: Graph Relationsgraph ... | |
| Basic business arithmetic. | 1/8/2008 |
| Q: The costs of doing business for a company can be found by adding fixed costs, such as rent, ... A: Questioner: amanda Category: Advanced Math Private: No Subject: costsThe costs of doing ... | |
| Simultaneous equations | 1/8/2008 |
| Q: a. Suppose that a market research company finds that at a price of p = $20, they would sell x = 42 ... A: Questioner: amanda Category: Advanced Math Private: No Subject: demand equationsa. Suppose ... | |
| Domain of a function | 1/7/2008 |
| Q: find the range of f(x)-5/(1-x) A: Questioner: Molly Category: Advanced Math Private: No Subject: pre calfind the range of ... | |
| Sequences | 1/5/2008 |
| Q: The sides of the large square are 16 cm. The midpoints of the sides are joined to form a new square. ... A: Questioner: Roshan Category: Advanced Math Private: No Subject: math qThe sides of the ... | |
| Sequences | 1/5/2008 |
| Q: first of all I just wanted to know if the Fibonacii Sequence is a function? I was thinking that it ... A: Questioner: Roshan Category: Advanced Math Private: No Subject: help with mathHi, first of ... | |
| Trigonometric identities | 1/4/2008 |
| Q: Prove 2-Sin x -2Cos^2x = 1 ---------------- -------- 3-3Sin x - 2Cos^2x 1- cosec x A: Questioner: zuber Category: Advanced Math Private: No Subject:Prove 2-Sin x - 2Cos^2x ... | |
| Mathematics - Trigomometry. | 1/2/2008 |
| Q: Paul. Can you solve (sin(x/2))^2 = 2sinx. This looks really easy but I can't solve it! I can't ... A: Questioner: Chris Category: Advanced Math Private: No Subject: Mathematics - ... | |
| Basic area calculation | 1/2/2008 |
| Q: "A dance pad is SQUARE, and has an area of 45 square feet. How long is one side of the dance pad ... A: Questioner: Sharyn Category: Advanced Math Private: No Subject: 7th grade math"A dance pad ... | |
| polynomial equations | 12/30/2007 |
| Q: The polynomial x³+5x²+ax+b has x-1 as a factor. When the polynomial is divided by (x-2), there is a ... A: Questioner: Niveha Category: Advanced Math Private: No Subject: polnomial expressionsThe ... | |
| probabilities | 12/29/2007 |
| Q: I’m trying to calculate a distribution table that shows the distribution of how many times in a row ... A: Questioner: Vance Category: Advanced Math Private: No Subject: probabilitiesI’m trying to ... | |
| Trigonometric equations | 12/26/2007 |
| Q: 1. PLEASE SOLVE BY CRAMER'S RULE- 3X-2Y-4Z=1 2X+5Y-2Z=-3 5X+3Y-3Z=10 2. SOLVE FOR X- 2COS^2X-COSX=1 A: Questioner: ALISA Category: Advanced Math Private: No Subject: PLEASE HELP1. PLEASE SOLVE ... | |
| Trigonometric Equations | 12/23/2007 |
| Q: Hey Paul thanks for the help earlier. I have another one that is giving me a hard time. The problem ... A: Questioner: Harmon Category: Advanced Math Private: No Subject: Solving Trigonometric ... | |
| Trigonometric equations | 12/23/2007 |
| Q: I am trying to find all solutions for sin^2x=1. This question falls under the chapert of Solving ... A: Harmon, sin^2(x) = 1 means (sin(x))^2 = 1, which gives you: sin x = 1 or sin x = -1. sin x = 1 ... | |
| Trigonometric equations | 12/20/2007 |
| Q: sin^2x+2sinx-3=0 A: Questioner: jon Category: Advanced Math Private: No Subject: solving for principal ... | |
| Factoring integers | 12/20/2007 |
| Q: can you please help me with the following question from my 7th grade accelerated math class; Find ... A: Questioner: Alex Category: Advanced Math Private: No Subject: Math problemHi Paul, can you ... | |
| Parabola | 12/18/2007 |
| Q: a reflecting telescope has a parabolic mirror for which the distance from the vertex to the focus is ... A: Questioner: chyjuan Category: Advanced Math Private: No Subject: precala reflecting ... | |
| Logarithmic expressions. | 12/17/2007 |
| Q: Logarithmic Having trouble understanding how to. on a couple of problems. solve Log littlex 64=3 ... A: Questioner: Bunny Category: Advanced Math Private: No Subject: Math 108Logarithmic Having ... | |
| Areas in basic geometry. | 12/15/2007 |
| Q: what is the area of a pentagon if the perimeter is 1000 meter, please can you include the working ... A: Questioner: george Category: Advanced Math Private: No Subject: fence cwwhat is the area ... | |
| Trigonometric equations | 12/14/2007 |
| Q: sin^2x=3cos^2x Which values of x does this statement apply to (in radians)? A: Questioner: Krista Category: Advanced Math Private: No Subject: trigsin^2x=3cos^2x Which ... | |
| Domain of a function | 12/14/2007 |
| Q: finding the domain of a function for instance f(x)=the squareroot of x-8 A: Questioner: Alisha Category: Advanced Math Private: No Subject: algebrafinding the domain ... | |
| Systems of linear equations | 12/9/2007 |
| Q: Can you show me how to solve the system of linear equations by using the substitution method? I also ... A: Questioner: Amina Category: Advanced Math Private: No Subject: Intermediate Algebra: ... | |
| Graph sketching. | 12/7/2007 |
| Q: Klarreich, You helped me a great deal on two questions that I recently asked, and was hoping that ... A: Questioner: Patsy Category: Advanced Math Private: No Subject: calculusDear Mr. Klarreich, ... | |
| Graph sketching. | 12/7/2007 |
| Q: Klarreich, I would deeply appreciate if you could help me with the following two calculus AB ... A: Questioner: Patsy Category: Advanced Math Private: No Subject: help with calculus AB ... | |
| Trigonometric equations | 12/6/2007 |
| Q: could you please help me with this question? Find all the solutions in radians of: ... A: Questioner: Emily Category: Advanced Math Private: No Subject: Pre-Calc questionHi, could ... | |
| Radian measure | 12/5/2007 |
| Q: What is the size, in degrees, of the angle subtended by an arc of 1 2/3 ft. in a circle whose radius ... A: Questioner: cristal Category: Advanced Math Private: No ---------- FOLLOW-UP ----------can ... | |
| Radian measure | 12/5/2007 |
| Q: What is the size, in degrees, of the angle subtended by an arc of 1 2/3 ft. in a circle whose ... A: Questioner: cristal Category: Advanced Math Private: No Subject: plane trigonometryWhat is ... | |
| Trigonometric functions | 12/4/2007 |
| Q: I just ask a question on an right isosceles triangle and i mistaken the right side it should be a r ... A: Sue, I didn' see that (isosceles) before. Now it's easy. (But PLEASE learn how to use the ... | |
| Trig angles | 12/3/2007 |
| Q: i guess that is what she meant it was a 0 with a line through the 0,than round to the nearest degree ... A: Questioner: sue Category: Advanced Math Private: No Subject: Trig angles ---------- ... | |
| Combinatorics Problem | 12/3/2007 |
| Q: A set containing nine elements has how many subsets containing seven elements? How would i answer ... A: Questioner: Angel Category: Advanced Math Private: No Subject: Combinatorics ProblemA set ... | |
| Venn Diagram. | 12/2/2007 |
| Q: in a local high school, there are 100 students in grade 11.Each student takes at least one of the ... A: Questioner: Anna Category: Advanced Math Private: No Subject: Mathematical Reasoningin a ... | |
| Circle Geometry | 12/2/2007 |
| Q: a circular culvert has a radius of 30cm. the depth of water in the culvert is 45cm. what is the ... A: Questioner: Anna Category: Advanced Math Private: No Subject: Circle Geometrya circular ... | |
| Law of Sines and Cosines | 12/1/2007 |
| Q: Hey, just needing some help with the grade 12 math homework. I have to questions to ask, if that's ... A: Questioner: Robyn Category: Advanced Math Private: No Subject: TrigonometryHey, just ... | |
| Trig angles | 12/1/2007 |
| Q: i guess that is what she meant it was a 0 with a line through the 0,than round to the nearest degree ... A: Questioner: sue Category: Advanced Math Private: No Subject: Trig anglesHi I was asked to ... | |
| Area under a curve. | 11/29/2007 |
| Q: I am having some difficulty with it. It says: One of the most important questions that arise in ... A: Questioner: Nick Category: Advanced Math Private: No Subject: TrigonometryHi I was ... | |
| Graph | 11/28/2007 |
| Q: What is a line graph, bar graph, chart graph? What are the different between them? A: Questioner: Henry Category: Advanced Math Private: No Subject: GraphWhat is a line graph, ... | |
| Factoring. | 11/27/2007 |
| Q: The volume of a box(in cubic inches) is modeld by the equation V+2x^3+x^2-8x-4, where x is measured ... A: Questioner: Keisha Robinson Category: Advanced Math Private: No Subject: volumeThe volume ... | |
| Domain of a function. | 11/26/2007 |
| Q: How would one solve this problem. What is the domain of the folowing function? f(x) = x - 7 / x - ... A: Questioner: Ashley Category: Advanced Math Private: No Subject: AlgebraDear Paul: How ... | |
| Intercepts, quadratic equations. | 10/19/2007 |
| Q: what is the x-intercept of f(x)= 2x+9%x-7 A: Questioner: Vika Category: Advanced Math Private: No Subject: Precalculuswhat is the ... | |
| Radius and circumference | 10/19/2007 |
| Q: Imagine a steel Band wrapped around the Equator of Earth like a belt. Imagine that 1 meter of steel ... A: Questioner: erica Category: Advanced Math Private: No Subject: word problemImagine a steel ... | |
| Related rates | 10/18/2007 |
| Q: A construction worker pulls a five-meter plank up the side of a building under construction by means ... A: Questioner: Josh Category: Advanced Math Private: No Subject: Calc 1 helpA construction ... | |
| Percentages | 10/18/2007 |
| Q: I don't understand how to find what one number as a percent of another number. Example: 9 is what ... A: Questioner: Connor Category: Advanced Math Private: No Subject: algebraI don't understand ... | |
| Linear programming | 10/17/2007 |
| Q: Could you please take the time to help me solve this problem: Using Geometric Approach, maximize P = ... A: Questioner: John Category: Advanced Math Private: No Subject: Geometric ApproachCould you ... | |
| Trigonometric inequality | 10/17/2007 |
| Q: I believe the following inequality is true, BUT I haven't found a reference nor I have been able to ... A: Questioner: Guillermo Category: Advanced Math Private: No Subject: Trigonometric ... | |
| Verbal problems in algebra | 10/16/2007 |
| Q: I am in college algebra and I found a situation at work which I applied algebra to. I created a ... A: Questioner: Adam Category: Advanced Math Private: No Subject: Complex algebraHi Paul, I am ... | |
| Trigonometric inequality | 10/15/2007 |
| Q: I believe the following inequality is true, BUT I haven't found a reference nor I have been able to ... A: Questioner: Guillermo Category: Advanced Math Private: No Subject: Trigonometric ... | |
| Function notation | 10/15/2007 |
| Q: f (x) = x2 - 7x + 10; find (a) f (0), (b) f (5), and (c) f (-2). A: Questioner: Patty Category: Advanced Math Private: No Subject: help << That's not a ... | |
| Trigonometric Identities | 10/14/2007 |
| Q: I'm trying to simplify (1+cosx)^(1/2). I hope that makes sense I don't know how to type the ... A: Questioner: eddy Category: Advanced Math Private: No Subject: Mathematical ModelsHi, I'm ... | |
| Probability density. | 10/14/2007 |
| Q: I have one more question Paul...I hope you can offer some more direction.. The weight of a bag of ... A: Questioner: Eric Category: Advanced Math Private: No Subject: Me again << not a good ... | |
| Probability | 10/13/2007 |
| Q: Hey Paul, I have been having trouble with a couple of problems. If you dont mind taking a look that ... A: Questioner: Eric Category: Advanced Math Private: No Subject: Probability QuestionHey ... | |
| Basic physics of heat. | 10/12/2007 |
| Q: Good Afternoon, I was wondering if you can help me with the following problem? Thank you in advance ... A: Questioner: chena Category: Advanced Math Private: No Subject: Problem SolvingHello, Good ... | |
| Right triangle geometry. | 10/10/2007 |
| Q: What is the hypotenuse of a 90 degree angle that is 12 feet by 12 feet? A: Questioner: Cindy Category: Advanced Math Private: No Subject: plane geometryWhat is the ... | |
| Chain Rule with logs | 10/10/2007 |
| Q: what is dy/dx if y=log(base 10)x, i think i have to convert into natural logs but not sure how. ... A: Questioner: Craig Category: Advanced Math Private: No Subject: Chain Rule with logswhat is ... | |
| Separable differential equations | 10/9/2007 |
| Q: The demand and supply of a good are given by: qD = (10-2p)/3 and qS = 2p-6 where p denotes the ... A: Questioner: camilla Category: Advanced Math Private: No Subject: demand and supplyThe ... | |
| Vertex of a parabola | 10/8/2007 |
| Q: how do I solve for "k" in the formula f(x)=-3x^2+4x+5 when trying to find the vertex A: Questioner: Bobby Category: Advanced Math Private: No Subject: vertexhow do I solve for ... | |
| Trigonometric functions | 10/6/2007 |
| Q: find sec90/cos61]+2{cot82cot17*cos45*cot75*cot82}-3{sinsquare38+sinsquare62} A: Questioner: tanveer Category: Advanced Math Private: No Subject: trignometryfind ... | |
| Polynomial graphs | 10/5/2007 |
| Q: How to find the x values of y= -8x^3 + 16x + 4. How many turning points are this function. Please ... A: Questioner: Jeep Category: Advanced Math Private: No Subject: How to find the x values of ... | |
| Maximization in two dimensions. | 10/3/2007 |
| Q: I'm a student currently studying mathematical economics, a combination of maths and economics, which ... A: Questioner: camilla Category: Advanced Math Private: No Subject: Profit maximisation << ... | |
| Trigonometric Identities | 10/2/2007 |
| Q: prove that 3(sin x-cos x)^4 +6(sin x+cos x)^2 +4(sin^6 x+cos^6 x)=13 A: Questioner: jatin gupta Category: Advanced Math Private: No Subject: i m studying in class ... | |
| Angles | 9/25/2007 |
| Q: What is the ratio between the hour hand and the minute hand of a clock at 2:15? ANSWER: Questioner: ... A: Questioner: Lee Ann Category: Advanced Math Private: No Subject: AnglesWhat is the ratio ... | |
| Area and arc length | 9/25/2007 |
| Q: find the area of the region delta in the xy plane bounded by the graphs of: delta: ... A: Questioner: Amery Category: Advanced Math Private: No Subject: Area and length of an arc ... | |
| Complex numbers and factoring | 9/24/2007 |
| Q: factorise the polynomial x^8 + 16 into polynomial factors with real coefficients, where the factos ... A: Questioner: Amy Category: Advanced Math Private: No Subject: Complex numberfactorise the ... | |
| Angles | 9/24/2007 |
| Q: What is the ratio between the hour hand and the minute hand of a clock at 2:15? A: Questioner: Lee Ann Category: Advanced Math Private: No Subject: ratiosWhat is the ratio ... | |
| concave down functions | 9/22/2007 |
| Q: I am an adult with a general math question. I received a response that my question was not clear ... A: Questioner: Joel Jones Category: Advanced Math Private: No Subject: concave down ... | |
| Percent mixture | 9/21/2007 |
| Q: Paul, I have a poor understanding of this subject. I have 1 kg of wholewheat flour the protein ... A: Questioner: Thomas Category: Advanced Math Private: No Subject: Flour Mixture Percent ... | |
| Sine graphs. | 9/20/2007 |
| Q: I am working on graghing sine fuctions and am struggling yet making it work so far. As I work this ... A: Questioner: MICHAEL Category: Advanced Math Private: No Subject: college math - graghs of ... | |
| Word Problems Intermediate Algebra | 9/19/2007 |
| Q: I have a block on understanding word problems as far as how/what to break down and enter the ... A: Questioner: Anna C. Category: Advanced Math Private: No Subject: Word Problems ... | |
| roots and equation | 9/19/2007 |
| Q: My Q is : Let 84x^2 +kx – 165 =0 be a quadratic eqn. Find the number of possible values of “k” for ... A: Questioner: pnd Category: Advanced Math Private: No Subject: roots and equationHi Paul, ... | |
| Logarithms | 9/18/2007 |
| Q: My Q : A line x= k intersects the graph of y = log5 x and the graph of y = log5 (x + 4). The ... A: Questioner: pnd Category: Advanced Math Private: No Subject: GraphsHi Paul, My Q : A line ... | |
| Domain of a function. | 9/18/2007 |
| Q: How do I graph the domain; f(x)=square root of 4x+4 A: Questioner: walter Category: Advanced Math Private: No Subject: algebraHow do I graph the ... | |
| Taylor Series | 9/16/2007 |
| Q: Taylor Series for sin(x^2) about x=0 up to and including terms of order 0(x^8) and use the result ... A: Questioner: Kate Category: Advanced Math Private: No Subject: Taylor SeriesTaylor Series ... | |
| Geometry | 9/15/2007 |
| Q: why are there 360 degrees in one revolution? A: Questioner: Henoc Category: Advanced Math Private: No Subject: Geometrywhy are there 360 ... | |
| Number theory, divisibility | 9/14/2007 |
| Q: how do you prove that the gcd(a,a+b)=d if and only if the gcd(a,b)=d. A: Questioner: Chukuu Category: Advanced Math Private: No Subject: Abstract Algebrahow do you ... | |
| Basic derivatives | 9/13/2007 |
| Q: Paul Could you please help the solve the following question as it took me days to figure out the ... A: Questioner: camilla Category: Advanced Math Private: No Subject: CalculusHi, Paul Could ... | |
| Unit conversions | 9/12/2007 |
| Q: I was just wondering how to convert 100,000gallons to kiloliters THanks in advance A: Questioner: Josh Category: Advanced Math Private: No Subject: General MathI was just ... | |
| Center of mass | 9/12/2007 |
| Q: Can you help me please to find the integral of the center of mass of the area between this ... A: Questioner: Muricio Category: Advanced Math Private: No Subject: Center of massHello. Can ... | |
| Trigonometric equations | 9/11/2007 |
| Q: Solve the following trigonometric equations. Give all positive values of the angle between 0‹ and ... A: Questioner: Charles Category: Advanced Math Private: No Subject: Plane TrigonometrySolve ... | |
| Consecutive integer problems | 9/11/2007 |
| Q: find two consecutive even integers such that six times the first equals five times the second A: Questioner: Karaese Smith Category: Advanced Math Private: No Subject: Consecutive ... | |
| Linear equations | 9/10/2007 |
| Q: suppose that 10,000 units of a certian item are sold per day by the entire industry at a price of ... A: Questioner: Shannon Category: Advanced Math Private: No Subject: help me....i'm ... | |
| Trigonometric Identities | 9/10/2007 |
| Q: Verify the following Identity: cos2x=cot^2(x-1)/cot^2(x+1) A: Questioner: Charles Category: Advanced Math Private: No Subject: Plane TrigonometryVerify ... | |
| Logs and powers | 9/9/2007 |
| Q: I have recently started an HNC after 25 years out of the loop. Looking for a solution/pointer to the ... A: Questioner: Kev Category: Advanced Math Private: No Subject: Logs and powersHi Paul. I ... | |
| Puzzle in maths | 9/7/2007 |
| Q: You have 8*8 & 6*1 blocks. You can cut 8*8 into 2 parts. By using these 3 parts you should create ... A: Questioner: Amit Category: Advanced Math Private: No Subject: Puzzle in mathsYou have 8*8 ... | |
| Trigonometric Identities | 9/7/2007 |
| Q: Verify the following identity: sin2theta/sintheta - cos2theta/costheta=sectheta A: Charles, First, a note on using this site: 1. Whenever I answer a question, I make sure the ... | |
| Trigonometric Identities | 9/5/2007 |
| Q: Simplify the following: sin(90°+ x) sin(180°+ x) + cos(90°+x) cos(180°- x) A: Questioner: Charles Category: Advanced Math Private: No Subject: Plane ... | |
| Simple interest. | 9/5/2007 |
| Q: Klarreich, My question is if I put 5,000 dollars into a bank cd investment for nine months and ... A: Questioner: Ryan Category: Advanced Math Subject: APRHi Mr.Klarreich, My question is if ... | |
| Plane Trigonometry | 9/4/2007 |
| Q: Can you help me with these problems please. Find the value of: Log cos 125°15'23" also Find the ... A: Questioner: Charles Category: Advanced Math Private: No Subject: Plane TrigonometryCan you ... | |
| Mathematical Induction | 9/4/2007 |
| Q: If there is a dartboard with scores 8 and 5 and you have an infinite amount of darts, what is the ... A: Questioner: Hayden Category: Advanced Math Private: No Subject: Dartboard ProblemIf there ... | |
| Standard algebraic forms. | 8/15/2007 |
| Q: My teacher is one of those give you one example very fast then let you loose to do it. Its very ... A: Anna, A 'form' is a pattern that represents many examples. Each of the examples is an 'instance' ... | |
| identities | 8/13/2007 |
| Q: i had hard time trying to solve this identity,,, its get loop every time i got further,, i am stuck ... A: Saleh, I know this is late, but I have been on vacation and didn't see it until today. There might ... | |
| Conics | 7/18/2007 |
| Q: I heard two interesting conics question the other day and was curious if you could explain it to me: ... A: Questioner: Whitney Category: Advanced Math Private: No Subject: ConicsI heard two ... | |
| Trigonemetry - sine curves | 7/18/2007 |
| Q: Hey, I absolutely love solving math problems,this question however has given me a little trouble. ... A: Questioner: Triggy Category: Advanced MathHey, I absolutely love solving math problems,this ... | |
| Factoring in equations | 7/17/2007 |
| Q: 1. Solve by completing the square I have the answer x^2-7x-2=0 the answer I came up with is (7+/- ... A: Questioner: Wade Category: Advanced Math Private: No Subject: Math questionsHi I have a ... | |
| Basic equations. | 7/17/2007 |
| Q: okay so i have a couple questions my teacher gave us a take home summative and we're allowed to use ... A: Questioner: meghan Category: Advanced Math Private: No Subject: math helpokay so i have a ... | |
| Exponential and Logarithmic Functions | 7/16/2007 |
| Q: I'm having some difficulties figuring out these questions. Could you explain them to me? Thank you! ... A: Questioner: Jillian Whitney Category: Advanced Math Subject: Re: Exponential and ... | |
| Trigonometric Identities | 7/15/2007 |
| Q: Prove the identity by starting from the left and transforming it into the right. 1 plus cos x plus ... A: Questioner: brandon peavlerb Category: Advanced Math Private: No Subject: trig proofs Math ... | |
| Trigonometric Integrals | 7/14/2007 |
| Q: I tried for atleast an hour on this question Using U substitution Find the Integral of (cot ... A: Questioner: Ashley Category: Advanced Math Private: No Subject: Calculus II u ... | |
| Logarithms | 7/13/2007 |
| Q: So I'm reviewing all of my precal work from 2 years ago and have become stumped on a very easy ... A: Questioner: Joe Category: Advanced Math ---------- FOLLOW-UP ----------Alright, thanks a lot ... | |
| Logarithms | 7/13/2007 |
| Q: So I'm reviewing all of my precal work from 2 years ago and have become stumped on a very easy ... A: Questioner: Joe Category: Advanced MathSo I'm reviewing all of my precal work from 2 years ago ... | |
| Composition of functions | 7/11/2007 |
| Q: Me again. Now I'm on functions. Is there a specific formula that I go by? I think I'm supposed ... A: Questioner: Taneisha Category: Advanced MathMe again. Now I'm on functions. Is there a ... | |
| algebra help | 7/10/2007 |
| Q: Can you solve the following equation for r so i can use it in a formula? y = 4ar^2 + (4/3)ar^3 A: Questioner: Peter Category: Advanced Math Private: No Subject: algebra helpCan you solve ... | |
| Opacity | 7/8/2007 |
| Q: I was wondering how I can calculate how opaque two sheets should be to form a single opaque sheet ... A: Questioner: Dennis Category: Advanced Math Subject: OpacityI was wondering how I can ... | |
| Nonlinear systems of equations | 7/2/2007 |
| Q: 1. (x-1)squared +(y+2)squared= 10 x+y= 1 2. 25y sq - 16x sq = 400 9y ... A: Questioner: mel Category: Advanced Math Private: No Subject: systems of equations1. ... | |
| Right Triangle Trig | 7/1/2007 |
| Q: A regular pentagon is inscribed in a circle with a radius of 5 centimeters. Find the length of a ... A: Questioner: sandra Category: Advanced MathA regular pentagon is inscribed in a circle with a ... | |
| Mathematical Fallacy | 6/28/2007 |
| Q: I believe there is a formula which can show 2+2 can equal 5.. do you know this formula please? ... A: Andyc, Yes. The formula is 0 = 1. From this you deduce: 0 = 1 2+2 = 2+2 ------------ ADD ... | |
| Logarithm and exponential properties | 6/28/2007 |
| Q: 1) 3e^lnx 2)condense 1/2ln(2x-1)-2ln(x+1) 3) lne^4.7=x 4) e^lnx=5 A: Questioner: adrian Category: Advanced Math1) 3e^lnx 2)condense 1/2ln(2x-1)-2ln(x+1) 3) ... | |
| Trigonometric Equations | 5/30/2007 |
| Q: My name is Chris and I'm currently studying Electrical Engineering. I'm having trouble with the ... A: Questioner: Chris Newman Category: Advanced Math Subject: Trigonometric EquationsHi, My ... | |
| Antidifferentation – area underneath a curve | 5/28/2007 |
| Q: Function f(x) = sinx I’m looking at the area underneath a sine graph with the reference points from ... A: Questioner: James Category: Advanced Math Subject: Antidifferentation – area underneath a ... | |
| Induction, Euclidean Algorithm | 5/27/2007 |
| Q: 1. Let the sequence {an} be defined recursively by: an=6a(n-1)-9a(n-2), a1=0,a2=9. Use Strong ... A: Questioner: Scott Category: Advanced Math Subject: algebra1. Let the sequence {an} be ... | |
| inverse trig range | 5/26/2007 |
| Q: y=x arccosx :determine the domain and range domain is o.k range i cannot solve without a graphical ... A: Bruce, You are trying to solve this equation: x f'(x) = arccos(x) + ... | |
| inverse trig range | 5/25/2007 |
| Q: y=x arccosx :determine the domain and range domain is o.k range i cannot solve without a graphical ... A: Questioner: bruce Category: Advanced Math Private: No Subject: inverse trig rangey=x ... | |
| Difference quotient | 5/25/2007 |
| Q: LET F(X)=4XSQUARED-9 COMPUTE: F(X)=F(X+h)-F(X)/h A: Questioner: ABBY Category: Advanced Math Subject: PRE-CAL HELPLET F(X)=4XSQUARED-9 ... | |
| Trigonometric identities | 5/23/2007 |
| Q: Please if you are giving an equation like = 2sin#t+ 3cos#t and t=2. # means theta.what will be your ... A: Questioner: Judith Category: Advanced MathPlease if you are giving an equation like = 2sin#t+ ... | |
| Verbal problem | 5/22/2007 |
| Q: I am taking grade 11 applied math. Can you give me the steps to solving this word problem? You own a ... A: Questioner: DougI am taking grade 11 applied math. Can you give me the steps to solving this word ... | |
| Trigonometric identities | 5/21/2007 |
| Q: Find A and B in terms of x and/or 'd'x. For qu 1 i definitely need help. I am not sure where nor how ... A: Questioner: D Category: Advanced Mathhi i am trying to work these problems (1) State the value ... | |
| Hero's Formula | 5/19/2007 |
| Q: Some help, please : Problem . Find the area,the radius of the inscribed circle and the radius of ... A: Questioner: Kirk Category: Advanced Math Subject: TrigonometrySome help, please : Problem ... | |
| Proof by mathematical induction | 5/19/2007 |
| Q: Can you show me how they are done? 1. Use induction to prove that for any real number ... A: Questioner: scott Category: Advanced MathHi i am really stuck on these questions. Can you show ... | |
| Linear equations. | 5/17/2007 |
| Q: Find the values of m,n E R for which the system of equations x+2y=1; 2x+my=n (a)possesses a unique ... A: Questioner: jon Category: Advanced Mathhi i am trying this question. Find the values of m,n E R ... | |
| Pre-calculus | 5/17/2007 |
| Q: Hey Mr. another problem I don't understand Find the value of x in ... A: Questioner: Kay Category: Advanced Math Find the value of x in ... | |
| Trigonometric Equations | 5/16/2007 |
| Q: Any help ? a) 3sin t - 4cos t = 2 , where 't' stands for "theta" b) cos4x = sin 2x Thanks a ... A: Questioner: Clark Category: Advanced Math Subject: Trigonometric EquationsAny help ? a) ... | |
| Coordinate geometry. | 5/16/2007 |
| Q: Perhaps youve heard of the famous English pirate named Blackbeard, but did you ever hear about his ... A: Questioner: Star Category: Advanced Math Subject: Math precalculusPerhaps you've heard of ... | |
| Chebyshef Polynomials - Reduction formulas | 5/15/2007 |
| Q: ! I need some help on this..I have no idea how to do this.. 3. Derive a formula for sin3x that will ... A: Questioner: Kay Category: Advanced Math Subject: pre-calcHi Mr.! I need some help on ... | |
| Algebra/Calculus??? | 5/14/2007 |
| Q: I'll try to meet all the criteria of your instructions, but since this question isn't mine, I might ... A: Questioner: Yells Category: Advanced Math Subject: Algebra/Calculus???Hello, I'll try to ... | |
| Maximum-minimum problem. | 5/13/2007 |
| Q: the number of bacteria in a culture at time t is given approximated by y=1000(25+te^(-t/20)for ... A: Questioner: bhaivka Category: Advanced Math Subject: bhavika ???????????the number of ... | |
| Basic curve sketching with derivatives. | 5/13/2007 |
| Q: given f(x)=1/x+lnx,defined only on the closed interval 1/e¡Üx<e a). showing your ... A: Questioner: tina Category: Advanced Math Subject: calculusgiven f(x)=1/x+lnx,defined only ... | |
| Integrating by Parts | 5/12/2007 |
| Q: I am studying for my A level maths exam this month and have come across a past-paper question that ... A: Questioner: Simon Category: Advanced Math Subject: Integrating by Parts questionI am ... | |
| Probability Questions | 5/11/2007 |
| Q: Probability Theory I'm having difficulty with these two problems: 1) A gardener plants 3 maple ... A: Seth, You are indeed correct. Perhaps I was in too much of a hurry to get you an answer and didn't ... | |
| Deducing linear functions | 5/10/2007 |
| Q: actually i have a question and two examples.What is the strategy for complicated function rules? I ... A: Questioner: Tatyana Category: Advanced Math Subject: function rulesactually i have a ... | |
| Probability Questions | 5/10/2007 |
| Q: Probability Theory I'm having difficulty with these two problems: 1) A gardener plants 3 maple ... A: Questioner: Seth Category: Advanced Math Subject: Probability QuestionsProbability Theory ... | |
| Basic set operations | 5/9/2007 |
| Q: is this right? Let X = {2,4,6,...,20} and let A,B and C be subsets of X given by A = {2,4,14,18}, B ... A: Questioner: scott Category: Advanced Math Private: No Subject: SETSis this right? Let X = ... | |
| LOG puzzle. | 5/9/2007 |
| Q: Find a rational number which is 50 times its log to the base 10 A: Questioner: sumati Category: Advanced Math Private: No Subject: LOG questionFind a ... | |
| Trigonometric equations | 5/8/2007 |
| Q: I find in trouble in solving these trigonometric equations : Can you help me ? a) sin2x-cosx = 0 ... A: Questioner: Enrico Category: Advanced Math Subject: Plane TrigonometryI find in trouble in ... | |
| Basic curve sketching with derivatives. | 5/7/2007 |
| Q: PLease advice.. Determine the x co-ordinates of the turning points of the functions. (i) ... A: Questioner: pearl Category: Advanced MathPLease advise.. Determine the x co-ordinates of the ... | |
| Exponential equation. | 5/7/2007 |
| Q: I need some help solving 2^(x+1)(8^-x)=4. Thankyou. A: Questioner: Ashley Category: Advanced MathHi, I need some help solving 2^(x+1)(8^-x)=4. ... | |
| Trigonometric functions of 30,60. | 5/6/2007 |
| Q: this was one of the problems i need help with. Thanks. solve for x in the given interval. You ... A: Questioner: stacey Category: Advanced Math Private: No Subject: Pre-Calcthis was one of ... | |
| Trigonometric Identity | 5/6/2007 |
| Q: I just have one more. I need to find the exact value of (1/cos^2 40deg.)-(1/cot^2 40deg). I'm not ... A: Questioner: Sarah Category: Advanced MathThanks for answering my other question. I just have ... | |
| Properties of logarithms | 5/5/2007 |
| Q: I need help writing (1/2)In(x^2+1)-4In(1/2)-(1/2)(In(x-4)+In x) as a single logarithm. Thanks! A: Questioner: Sarah Category: Advanced MathHi, I need help writing ... | |
| Exponential growth and decay, | 5/4/2007 |
| Q: please listen this is a project and i solved arond 10 pages and these are the questions i faced some ... A: Questioner: shames Category: Advanced Math Subject: logarithims and exponentsplease listen ... | |
| Inverse trig functions | 5/3/2007 |
| Q: I'm trying to solve 2.76=tan^2(45+x/2) but can't figure out how to get the x alone any ideas? A: Questioner: Lindsey Category: Advanced MathI'm trying to solve 2.76=tan^2(45+x/2) but can't ... | |
| calculus | 5/2/2007 |
| Q: let f be the funciton defined by f(x)=(1+tanx)^3/2 for [-pi/4<x<pi/2] a. write an equation for the ... A: Questioner: h Category: Advanced Math Private: No Subject: calculuslet f be the funciton ... | |
| non-associative mathematics | 5/2/2007 |
| Q: Can you give me any examples of mathematical entities that do not obey the associative law? (A*B)*C ... A: Jeff, Sorry, but no obvious examples come to mind that involve addition or multiplication. ... | |
| Mean Value Theorem | 5/1/2007 |
| Q: Let f(x)=x^3+ax^2+bx+c and f(x) has an inflection point at (0,-2) and average(mean) value of f(x) on ... A: Questioner: tina Category: Advanced MathLet f(x)=x^3+ax^2+bx+c and f(x) has an inflection point ... | |
| Word Problem Help | 4/30/2007 |
| Q: I just want to know how to write this in Algebra and not English :) I need the formula or equation ... A: Questioner: Boris Category: Advanced Math Private: No Subject: Word Problem HelpI just ... | |
| Advanced Probability | 4/29/2007 |
| Q: I have a question regarding an equation that I need to show but I can't put it on here as I don't ... A: Michael, You can send the question to me at: PXKLARREICH@AOL.COM You will be able to attach or ... | |
| Ellipses in standard form | 4/29/2007 |
| Q: I am currently taking College Algebra and Analytical Geometry. We are currently studying ellipses, ... A: Questioner: Karen Category: Advanced MathHello Paul, I am currently taking College Algebra and ... | |
| Intervals and inequalities. | 4/27/2007 |
| Q: Let A={x:2<=x<=7} and B={x:|x-4|<=h},h is an element of R.Find the LARGEST value of h for which B ... A: Questioner: John Category: Advanced Mathhi i have this problem i'm trying to solve. Let ... | |
| calculating the turning point/straight line | 4/26/2007 |
| Q: question1 Determine the x co-ordinates of the turning points of the functions (ii) ... A: Questioner: Pearl Category: Advanced Math Subject: calculating the turning point ... | |
| sketching graphs with equations | 4/25/2007 |
| Q: but before i wanted to solve the quadractic equation first. i need to see how your answer ends ... A: Questioner: pearl Addo Category: Advanced Math Private: No Subject: sketching graphs with ... | |
| Circumradius and Inradius of a triangle | 4/25/2007 |
| Q: Pls derieve that the circum radius of equilateral trianle is side/sqrt(3) and inradius is ... A: Questioner: Pritesh Category: Advanced Math Subject: Circumradius QuestionPls derieve that ... | |
| Vector geometry in 3 dimensions. | 4/24/2007 |
| Q: 1. Show that the line with equation (x,y,z)=(4,-1,3)+ t(-3,3,0) intersects the line with equation ... A: Questioner: scott Category: Advanced Math Subject: algebra-vectors1. Show that the line ... | |
| Areas in basic geometry. | 4/24/2007 |
| Q: i'm having real trouble with a problem, A circle of radius (r) is inscribed in an equilateral ... A: Questioner: Matt Category: Advanced MathHi, i'm having real trouble with a problem, A circle of ... | |
| The cross product. | 4/21/2007 |
| Q: I've missed a few classes due to sickness and trying random questions out of a textbook with no ... A: Questioner: Scott Category: Advanced Math Subject: algebra questions.Hi there im stuck on ... | |
| Inverse Trig functions | 4/20/2007 |
| Q: Any help ?! a) Solve :(cos raised to - 1 ) + ( cos raised to -1 )2x =60° b) Verify the identity ... A: Alan, That's better! Actually it's not much better, because it is rather messy, unless I am ... | |
| Inverse Trig functions | 4/20/2007 |
| Q: Any help ?! a) Solve :(cos raised to - 1 ) + ( cos raised to -1 )2x =60° b) Verify the identity ... A: Alan, You missed the point. I understood you were writing cos^-1, which means arccos, and ... | |
| Inverse Trig functions | 4/19/2007 |
| Q: Any help ?! a) Solve :(cos raised to - 1 ) + ( cos raised to -1 )2x =60° b) Verify the identity ... A: Questioner: Alan Category: Advanced Math Subject: Plane TrigonometryAny help ?! a) Solve ... | |
| Equations in three variables. | 4/18/2007 |
| Q: i need help solving this equation for 3 variables. i need to figure out what x y and z equal. ... A: Questioner: larissa Category: Advanced Math Subject: Algebra 2i need help solving this ... | |
| Probability of Independent Events | 4/17/2007 |
| Q: a study indicates that 5% of men and 0.5% of women are colorblind. find the probility of choosing a ... A: Questioner: dillon Category: Advanced Math Private: No << Good for you! Subject: math << ... | |
| Logarithmic plots | 4/17/2007 |
| Q: PLEASE READ ALL OF THE INFORMATION I'VE PROVIDED - I'M NOT ASKING YOU TO DO MY HOMEWORK, I'M ASKING ... A: Questioner: Emma Category: Advanced Math Hi, Emma, >> I'll see what I can do, but see ... | |
| Logarithmic transformation | 4/16/2007 |
| Q: I am looking at the length-weight relationship in a population of fish, the equation for this is: W ... A: Questioner: Emma Category: Advanced Math Subject: Logarithmic transformationI am looking at ... | |
| Trigonometry - reduction formulas. | 4/16/2007 |
| Q: Can you, perhaps, help me anyway ? Da: <donotreply@allexperts.com> Inviato: domenica 15 aprile ... A: Questioner: Mark Category: Advanced Math Subject: Plane TrigonometryCan you, perhaps, help ... | |
| Rounding | 4/15/2007 |
| Q: "Round the number 43,678.426785 to the nearest ten thousand? I'm confuse with the decimals. I know ... A: Questioner: Marie Category: Advanced Math Subject: Rounding"Round the number 43,678.426785 ... | |
| Mean Value Theorem | 4/13/2007 |
| Q: "this problem is a multi choice one: if f'(x) and g'(x)exist and f''(x)> g'(x) for all real x, then ... A: Questioner: tina Category: Calculus Subject: calculus"this problem is a multi choice one: ... | |
| Exponents | 4/5/2007 |
| Q: Is there a simpler way to figure out the answer to 1.06^300 than multiplying 1.06 by itself 300 ... A: Denise, Your................................ Is there a simpler way to figure out the answer to ... | |
| Basic simplification. | 3/20/2007 |
| Q: 4(y+2)+5(y-2) A: Questioner: trisha Category: Advanced Math Subject: need help!4(y+2)+5(y-2) ... | |
| Algebra | 3/16/2007 |
| Q: I have a few questions that I would love to have help with if you could. If i could have them step ... A: Questioner: Andrea Category: Advanced Math Subject: AlgebraI have a few questions >> Just ... | |
| trig identities | 3/14/2007 |
| Q: Ok this is the last question i have....how do i prove 1+sin 2x / cosx + sinx = cos 2x / cosx - sinx ... A: Questioner: britney Category: Advanced Math Subject: trig identitiesOk this is the last ... | |
| Arc length integral. | 3/13/2007 |
| Q: Can you show me how to solve for the arclength of y=2x^(3/2) with x between 0 and (5/3)? A: Questioner: Jeramie Category: Advanced Math Subject: calculusHi Paul, Can you show me how ... | |
| Fractional equations and extraneous roots. | 3/13/2007 |
| Q: solve: 7x/x-3 - 21/x +11= 63/x^2-3x A: Questioner: Mallory Category: Advanced Math Subject: MTH 110solve: 7x/x-3 - 21/x +11= ... | |
| Graphing Linear Equations | 3/12/2007 |
| Q: my name is Ciera and I have been looking all through my book to find out how to do these problems.I ... A: Questioner: Ciera Category: Advanced Math Subject: Could you help me with these problems if ... | |
| Orthocenter of a triangle. | 3/11/2007 |
| Q: how could i formulate this mathematically? There is an equilateral hyperbole defined by xy=1. 3 ... A: Questioner: Sean Category: Advanced Math Subject: Algebraic curvesHi there, how could i ... | |
| proving identities | 3/11/2007 |
| Q: I've been trying to figure this out...how do i prove this identity? sin x cos^3 x - cos x sin^3 x = ... A: Questioner: Britney Category: Advanced Math Subject: proving identitiesHi, I've been trying ... | |
| Integrals of powers of cos x. | 3/10/2007 |
| Q: How do I go about finding the integral of a higher power function in a trig calculus problem such as ... A: Questioner: Jeff Category: Advanced Math Subject: Calculus trig questionHello, How do I go ... | |
| More fun with trig identities | 3/10/2007 |
| Q: I've been trying to work these problems...how do i prove these identities? cos^4 x+1-sin^4 x=2cos^2 ... A: Questioner: Britney Category: Advanced Math Subject: identitiesHi I've been trying to work ... | |
| Difference of cubes, complex numbers | 3/9/2007 |
| Q: how do you factorise x^6 + 64? A: Questioner: Bianca Category: Advanced Math Subject: complex numbershow do you factorise ... | |
| Radioactive decay. | 3/9/2007 |
| Q: I do not understand this problem after nearly two days I have thrown in the towel. The problem ... A: Questioner: Alicia Category: Advanced Math Subject: Logarithmics >> Wasn't that the name ... | |
| x intercepts - cubic equations | 3/6/2007 |
| Q: Although I thought this was easy I am getting no where with it... it is simple,but I just cannot ... A: Questioner: Belinda Category: Advanced Math Subject: x interceptsHello Paul, Although I ... | |
| Applying a well-known inequality. | 3/6/2007 |
| Q: For my chemical engineering homework assignment, we were given an equation we need to differentiate ... A: Questioner: Chelsea Category: Advanced Math Private: No Subject: Differentiating an ... | |
| Angular velocity. | 3/5/2007 |
| Q: Mr. Klarreich, I am working on a calculus problem and I don't know how to set it up and ... A: Questioner: Robert Category: Advanced Math Private: No Subject: Rotation of Propellers ... | |
| Velocity in different units. | 3/5/2007 |
| Q: Paul, I am stuck and have no place to turn, need help!!!! I am working on the current problem... ... A: Questioner: Arthur Category: Advanced Math Subject: Circular Functions - PreCalcPaul, I ... | |
| Modeling differential equation | 3/4/2007 |
| Q: Below is my question, hope you can solve it. A 100-litres tank is intially half filled with pure ... A: Questioner: James Category: Advanced Math Subject: Modeling differential equationHi Paul, ... | |
| Sum of squares formula | 3/4/2007 |
| Q: it can be proven that 1^2 + 2^2 + 3^3 + ..... N^2 = [(n)(n+1)(2n+1)] / 6 can u please tell me how ... A: Hoyong, Proving it by induction is straightforward, but I think you are asking how we derived it in ... | |
| Trigonometric functions of 30,60. | 3/3/2007 |
| Q: How do you find a ratio for a cosine of 30degrees? A: Questioner: nicole Category: Advanced Math Subject: trigHow do you find a ratio for a ... | |
| Maximum-minimum problem. | 3/3/2007 |
| Q: when i set it equal to 0 i get @=atan µk then what should i do do argue that it's minimum and how ... A: Tina, I appreciate that you paid attention to my request not to mark questions Private. So about ... | |
| check if answers are right..please | 3/2/2007 |
| Q: Can you check these answer for me.. y=5x^2-10x+7 X Y=5X^2-10X+7 ... A: Pearl, In your material:Can you check these answer for me.. y=5x^2-10x+7 X ... | |
| Trigonometric Identity | 3/1/2007 |
| Q: Prove the identity: sin³x-cos³x/sinx+cosx=csc²x-cotx-2cos²x/1-cot²x A: Questioner: Justin Category: Advanced Math Subject: TrigProve the identity: ... | |
| Maximum-minimum problem. | 3/1/2007 |
| Q: i have a feeling what i have done is incorrect... 1. A music company sells music downloads they ... A: Questioner: pearl Category: Advanced Math Private: No Subject: word questionHiya can you ... | |
| Proof (groups) | 2/28/2007 |
| Q: Can you please help me with the followingi think induction is one way to do it and i have to take ... A: Questioner: Karlo Category: Advanced Math Subject: Proof (groups)Hi, Can you please help me ... | |
| Basic properties of logarithms | 2/27/2007 |
| Q: 2/3log27+2log2-2log3; 4in2+1/2in4-in8; 2log1/3-3log1/2 A: Questioner: pearl Category: Advanced Math Subject: logarithms2/3log27+2log2-2log3; ... | |
| Growth and decay problems. | 2/27/2007 |
| Q: Please help solve these. 4 A farmer buys 90 sheep in 1990. In 2005 he has x sheep, where x is the ... A: Questioner: pearl Category: Advanced Math Subject: exponential functionPlease help solve ... | |
| algebra-exponent | 2/26/2007 |
| Q: HEy can you help me solve this one: "if 2 raised to 6.5 = a 3 raised to 7.5 = b what is 6 ... A: Questioner: Leonard Category: Advanced Math Subject: algebra-exponentHEy can you help me ... | |
| Combinations without replacement. | 2/25/2007 |
| Q: how many combinations will the be if i roll three dice? A: Questioner: amelia Category: Advanced Math Subject: mathshow many combinations will the be ... | |
| Groups | 2/23/2007 |
| Q: i study discrete math Would you please help me with the following 2 questions 1-Prove that every ... A: Questioner: Linda Category: Advanced Math Subject: GroupsHi, i study discrete math Would ... | |
| Objection to cardioidish | 2/22/2007 |
| Q: Im now seeing the problem a little differently. Is it correct? it is a little different from the way ... A: Vaulter, In your example: Did you take vector BP as Vetor BC plus vector CP? >> Well, BP is equal ... | |
| Simultaneous equations in 3 variables. | 2/22/2007 |
| Q: answer as an ordered triple x+y+z=3 2x+-y=2 4z=2x+2y A: Questioner: Sam Category: Advanced Mathanswer as an ordered triple x+y+z=3 2x+-y=2 <<< Did ... | |
| Objection to cardioidish | 2/21/2007 |
| Q: Im now seeing the problem a little differently. Is it correct? it is a little different from the way ... A: Vaulter, Yes, my view was different. I set things up with the 'inner' circle having radius a ... | |
| linear programming | 2/21/2007 |
| Q: tat helped a lot...some more queries...is problems involved with linear programming solved like how ... A: Harini, Sorry, but I was never very happy with this topic, so I can't give you a lot of detail. ... | |
| linear programming | 2/20/2007 |
| Q: could you pls tell me what linear programming is all about? where do we use them in real life? does ... A: Harini, You wrote: could you pls tell me what linear programming is all about? >> It is a way of ... | |
| Cycloids | 2/19/2007 |
| Q: What will be the trajectory of a point on a circle of diameter a rolling on another circle ... A: Questioner: Vaulter Category: Advanced Math Subject: CycloidsWhat will be the trajectory of ... | |
| Diff Equation by separation of variables. | 2/19/2007 |
| Q: dV/dt= -sqrt(V) find an expression for V in terms of t. this is what i tried: dt=dV/-sqrt(V); i then ... A: Questioner: A Category: Advanced Mathhi i would like some help with this question. ... | |
| A pile of cubes - sum of squares. | 2/18/2007 |
| Q: A pyramid is made by piling up centimetre cubes layer upon layer. Each layer contains tightly packed ... A: Questioner: Stuart Category: Advanced Math Subject: A pile of cubesA pyramid is made by ... | |
| Percent mixture problem. | 2/16/2007 |
| Q: I have 1 liter of water and I need to make a 50ug/ml salt solution with this liter. If I already ... A: Questioner: Dana Category: Advanced Math Subject: Volume ConversionI have 1 liter of water ... | |
| Functions and inverses. | 2/9/2007 |
| Q: i'm studying discrete math can you please help me with the following questions: 1)If f : X -> Y ... A: Questioner: Maya Category: Advanced Math Subject: FunctionsHi, i'm studying discrete math ... | |
| Follow-up to previous response on spirals | 2/9/2007 |
| Q: We can make a spiral end by bounding the value of the 'r' in your polar equation. So the parametric ... A: Raj, If the width of the spiral is not zero, then you are no longer looking at a spiral, but ... | |
| writing equations | 2/8/2007 |
| Q: I was wondering if you could explain the reason why the -7 inside the ( ) turned to a +7 when the ( ... A: Questioner: BS Category: Advanced Math Subject: writing equationsThank you so much for an ... | |
| writing equations | 2/7/2007 |
| Q: How do I go about writing an equation for this: the difference when 7 less than a number is ... A: Questioner: BS Category: Advanced Math Private: no Subject: writing equationsHow do I go ... | |
| Proofs | 2/6/2007 |
| Q: -Concepts of Math i have 2 questions: 1)Let A and B be subsets of a set X. Prove the de Morgan ... A: Questioner: Linda Category: Advanced Math Subject: Proofs-Concepts of Math I have 2 ... | |
| Partial Derivatives and the Chain Rule | 2/5/2007 |
| Q: Here is something I've been wondering about: Given a curve in parametric form, x = x(t), y = y(t), ... A: Questioner: Martin Category: Advanced Math Subject: DerivativesHello, Here is something ... | |
| Solving systems of equations. | 2/5/2007 |
| Q: Both Gaussian Elimination and Cramer's Rule are used for solving linear systems. If you need to ... A: Questioner: Chad Chase Category: Advanced Math Private: no Subject: College mathBoth ... | |
| Trigonometry - sum-to-product identities. | 2/1/2007 |
| Q: I was wondering how to prove any of the four sum to product identities. I'm not sure where to begin. ... A: Questioner: Melissa Category: Advanced Math Subject: TrigonometryHi I was wondering how to ... | |
| Rotational velocities | 2/1/2007 |
| Q: The figure is a side view of 3 rollers that are tangent to one another. If roller A turns at 120 ... A: Questioner: JennieThe figure is a side view of 3 rollers that are tangent to one another. If ... | |
| Population Growth | 1/29/2007 |
| Q: I need help solving a problem actually for my chemistry class, although that problem isn't about ... A: Questioner: StephanieHi! I need help solving a problem actually for my chemistry class, although ... | |
| Solving a triangle-Law of Sines. | 1/28/2007 |
| Q: I have a triangle 45 degree and the bottom is 173 ft, Another angle is 60. How can I figure out ... A: Questioner: Layne Category: Advanced Math Private: no Subject: Finding Length of two sides ... | |
| Solving a triangle-Law of Sines. | 1/28/2007 |
| Q: I have a triangle 45 degree and the bottom is 173 ft, Another angle is 60. How can I figure out ... A: Questioner: Layne Category: Advanced Math Private: no Subject: Finding Length of two sides ... | |
| Plane Trig | 1/27/2007 |
| Q: The vertex angle of an isosceles triangle is 57 degrees 24' and each of its equal sides is 375.5 ft ... A: Questioner: Tracey Category: Advanced Math Private: no Subject: Plane TrigThe vertex angle ... | |
| Prime factorizations | 1/26/2007 |
| Q: i'm studying concepts of math can you please help me with the following 2 questions 1)if a and b ... A: Questioner: lina Category: Advanced Math Subject: Primesi'm studying concepts of math can ... | |
| Right triangle trigonometry. | 1/23/2007 |
| Q: my question is that if you have a pentagon, which has five sides, and you fold it in half, witht the ... A: Questioner: Manish Category: Advanced Math Subject: Advance algebra 2Hi, my question is ... | |
| graphs of multipart functions | 1/20/2007 |
| Q: I'm a second year physics student. One weakness i have in mathematics is being able to work with ... A: Questioner: puneet Category: Advanced Math Subject: graphshi there, I'm a second year ... | |
| exponential equations, growth and decay | 1/17/2007 |
| Q: Our text makes it clear that for y = a b^x if a>0 and b>1 then the equation represents exponential ... A: Questioner: Michael Category: Advanced Math Subject: exponential equationsOur text makes it ... | |
| number combinations | 1/3/2007 |
| Q: I am in warehouse shipping and my company is going to be using a pallet labeling program that ... A: Questioner: eli Category: Advanced Math Private: no Subject: number combinationsHi, I am in ... | |
| Trigonometric Equations - DUPLICATE | 1/2/2007 |
| Q: Please help me!! X is between 0 degrees and 360 degrees (meaning show answer in degrees??) 3sin(x + ... A: Jon, ... I mean, Christie, Do these two questions look similar: ------------- FIRST QUESTION ... | |
| Solving Trig Equations | 1/1/2007 |
| Q: SOLVE for X in each of the following: a) X is between 0 and 2pi (meaning show answer in radians??) ... A: Questioner: Jon Category: Advanced Math Subject: Pre Calculus Trig. Solving EquationsSOLVE ... | |
| Trigonometric identities | 12/31/2006 |
| Q: Please help me!! a) simplify completely: tanx + cotx / csc^2 x b)simplify completely: sin(pi + x) ... A: Questioner: Jamie Category: Advanced Math Subject: Pre-Calc: Trigonometry a) simplify ... | |
| Compound interest | 12/25/2006 |
| Q: Paul, can you please help me with this query; How do I calculate what $1000 in 1939 is worth in ... A: <<<<<<<<<<< SEE ADDENDUM >>>>>>>>>> Questioner: Paul Category: Advanced Math Subject: Currency ... | |
| Multivariable Calculus | 12/24/2006 |
| Q: Compute the flux integral [double integral] G(x,y,z) dot ndA for the vector field G(xyz) = ... A: Questioner: Melody Category: Advanced Math Subject: Multivariable CalculusHi - I'm confused ... | |
| Harmonic progression vs Harmonic analysis | 12/23/2006 |
| Q: I have been trying to sort some things out on my own, and seem to have got a trifle confused, so ... A: Questioner: Martin Category: Advanced Math Subject: HarmonicHello, I have been trying to ... | |
| about functions | 12/21/2006 |
| Q: I would like to find out a lot more about functions. So I thought perhaps you could recommend me ... A: Mikkel, I think you are now going far outside my expertise. If you want to know more about the ... | |
| Binomial Probabilities | 12/20/2006 |
| Q: First, thanks. Equations like (---) or (----)^4 are like alien language to me. Originally, I just ... A: Boozerker, I think there's not much else I can do for you on this. The calculation for '12 on two ... | |
| Math Functions that are not basic? | 12/19/2006 |
| Q: -----Question----- When I was first learning math in elementary school we learned the basic math ... A: Questioner: James Category: Advanced Math Private: no Subject: Math Functions that are not ... | |
| Math Functions that are not basic? | 12/18/2006 |
| Q: When I was first learning math in elementary school we learned the basic math functions: +, -, x, /. ... A: Questioner: James Category: Advanced Math Subject: Math FunctionsWhen I was first learning ... | |
| Trigonometric identities | 12/18/2006 |
| Q: sinx+9sinx/tan2x) A: Questioner: diana Category: Advanced Mathsinx + 9 sinx/tan2x) ......................... Hi, ... | |
| Exponential Growth and Decay | 12/17/2006 |
| Q: what theory of life of which the exponential function is applied? A: Betsy, If a population grows at a rate proportional to the number of individuals, then the ... | |
| Substitution into functions | 12/17/2006 |
| Q: Find g(a+1) when g(x)=3x-2 A: Questioner: Jena Category: Advanced Math Subject: AlgebraFind g(a+1) when g(x)=3x-2 ... | |
| Binomial Probabilities | 12/16/2006 |
| Q: we play a game where 4 six-sided dice are rolled. You add the three highest dice (dropping the ... A: Questioner: boozerker Category: Advanced Math Subject: Probability of rolling high with ... | |
| Order of operations. | 12/16/2006 |
| Q: Could you tell me a problem using parentheses, exponents, sighned numbers, and all the four ... A: Questioner: Carly Category: Advanced Math Subject: MathDear Paul, Could you tell me a ... | |
| Right triangle trigonometry. | 12/15/2006 |
| Q: 1) Sqroot of x^2 + 4 = 2 Sqroot of 2 2) In a triangle ABC, angle A = 45 degrees and angle B = 60 ... A: Questioner: Erik Category: Advanced Math Subject: please help1) Sqroot of x^2 + 4 = 2 ... | |
| geometry | 12/14/2006 |
| Q: Are you sure the radius of a 48" diameter pipe is 4 feet?How many cubic feet are in a 48" diameter ... A: Questioner: Ralph Category: Advanced Math Subject: geometryAre you sure the radius of a 48" ... | |
| Proving a Trig Identity | 12/14/2006 |
| Q: sec (csc - 1) = Cot / 1 + sin A: Questioner: Marie Category: Advanced Math Subject: Verify Idenitysec (csc - 1) = Cot / 1 + ... | |
| Proving trig identities | 12/12/2006 |
| Q: use the product-to-sum forulas to write the product as a sum or differance a) 3cos2xsin6x use the ... A: Questioner: cody Category: Advanced Math Subject: Proving trig identities1. use the ... | |
| Proving trig identities | 12/12/2006 |
| Q: verify the identity: tan x cot x/cosx=sec x verify the identity: 1+csc/sec-cot=cos A: Questioner: cody Category: Advanced Math Subject: pre-cal (trig)verify the identity: tan x ... | |
| Probability of drawing w/o replacement. | 12/11/2006 |
| Q: 5 cards are drawn without replacement from a standard 52 card deck. Find the probability that a. the ... A: Questioner: Ozzie Category: Advanced Math Subject: Probability5 cards are drawn without ... | |
| Square counting and combinatorics. | 12/10/2006 |
| Q: i need help with a math IB school project. I am looking or help developing an algebraic formula to ... A: Questioner: Jordan Category: Advanced Math Subject:Hi, i need help with a math IB school ... | |
| Centroid of an Annulus - Two solutions | 12/5/2006 |
| Q: It was here: http://experts.about.com/q/Advanced-Math-1363/Findig-location-Centroid.htm and the ... A: Ken, Okay, I am satisfied that I can do it, now. I have fastened upon the following two methods: ... | |
| Centroid of an Annulus | 12/5/2006 |
| Q: I read your answer to another student's question about finding the centroid of a half annulus with ... A: Ken, You wrote: I read your answer to another student's question about finding the centroid of a ... | |
| Anti-simplification of fractions | 12/4/2006 |
| Q: i am doing some math problems it is as followed 2/3=blank/24 & i am a 10 year old trying to ... A: Questioner: mr Category: Advanced Math Subject: BUILDING factionsi am doing some math ... | |
| functions by ratios. | 12/4/2006 |
| Q: I am working on a problem that states -you are in a hot air balloon and the distance you can see ... A: Questioner: Keely Category: Advanced Math Subject: Algebra II exponential functionsI am ... | |
| Reasoning puzzles. | 12/2/2006 |
| Q: Amy, Carl and Amanda are three students. Only one of them is an AP Scholar. Each of them in turn ... A: Questioner: Ariel Category: Advanced Math Subject: Reasoning puzzles.Amy, Carla, and Bella are ... | |
| Order of a quotient group. | 11/10/2006 |
| Q: give the order of the element in the factor group. (Z12 x Z18)/<(4,3)> ? i think it's 32? ... A: Questioner: Laura Category: Advanced Math Subject: Order of a quotient group.give the order ... | |
| Inverses of functions. | 11/9/2006 |
| Q: i cannot for the life of me figure out how to do this problem! i know the concept and i've done ... A: Questioner: missy Category: Advanced Math Subject: Inverses of functions.<< I CHANGED IT.i ... | |
| algebra | 11/8/2006 |
| Q: Explain how to solve 4 to the negative 3rd? A: Questioner: Taylor Category: Advanced Math Subject: Negative exponents.Explain how to ... | |
| Surface of revolution | 11/8/2006 |
| Q: Find the area of the surface generated when y=((x^3)/12)+(1/x) from x=1 to x=2 is rotated about the ... A: Questioner: Gary Category: Advanced Math Subject: Surface of a revolution >> You mean 'A ... | |
| Calculus | 11/7/2006 |
| Q: I am working on a study guide for my midterm and hoping you can give me some help on this problem as ... A: Questioner: Gary Category: Advanced Math Subject: CalculusI am working on a study guide for ... | |
| The equation of a circle. | 11/7/2006 |
| Q: What is meant by an equation of a circle. What does actually an equation of a circle means as d of a ... A: Questioner: Kiriti Category: Advanced Math Subject: THE EQUATION OF A CIRCLE.What is meant ... | |
| Systems of Linear Equations: Row Reduction. | 11/6/2006 |
| Q: Mr. Klarreich, I have a real problem solving matrices in reduced row echelon form. I can apply an ... A: Questioner: Jonah Category: Advanced Math Subject: Systems of Linear Equations: MatricesMr. ... | |
| Complementary and Supplementary angles. | 11/6/2006 |
| Q: I am having an isssue with this question... The answer needs to be expressed in terms of pi. Find ... A: Questioner: will Category: Advanced Math Subject: mathI am having an isssue with this ... | |
| conversion - liters to gallons | 11/5/2006 |
| Q: Can you give me a formula for converting miles per litre to miles per gallon (British Imperial) A: Gordon, First, determine the number of liters ... oops -- you are on the other side of the ... | |
| trigonometry: sine law/ cosine law | 11/5/2006 |
| Q: My problem involves two composite triangles, PQR (smaller) and PQZ (larger), with the following ... A: Questioner: Maya Category: Advanced Math Private: no Subject: trigonometry: sine law/ ... | |
| differentiable calculus | 10/31/2006 |
| Q: Find the slope of the graph of y=f(x) at the designated point. f(x)=x^10+1+square root 1-x, (0,2) A: Questioner: brandon Category: Advanced Math Private: no Subject: differentiable ... | |
| math! | 10/31/2006 |
| Q: The De sousa family has a pond in their backyard and the water lilies are growing in the pond. the ... A: Mel, Before doing the problem, I have a request. Please make the Subject Line say something about ... | |
| Question on graph | 10/30/2006 |
| Q: As I said before thank very much for giving the solulion for x intercept and y-intercept for ... A: Questioner: Hassan Category: Advanced Math Private: no Subject: Question on graphHi, As I ... | |
| Question | 10/30/2006 |
| Q: The sum of the first n terms of a Geometric Progression (G.P) is 9 and the sum of the first four ... A: Questioner: Hassan Category: Advanced Math Subject: QuestionThe sum of the first n terms of ... | |
| Differentiating Natural Logs | 10/24/2006 |
| Q: The way the sum is written is as i typed it. y = ln e^-x SQRT[(1+2x)/(1-2x)] Maybe there should be ... A: Questioner: Annie Category: Advanced Math Subject: Differentiating Natural LogsHi Paul, The ... | |
| Mathematical Proofs | 10/23/2006 |
| Q: I am a working on inductive proofs and am stuck. For all n>2, the sum of the angle measures of the ... A: Jeanne, Actually, the polygons don't have to be convex, but you have to deal with 'reflex' angles ... | |
| Differentiating Natural Logs | 10/23/2006 |
| Q: I have the following question, and i just want a hint on how to start it off. If y = ln e^-x ... A: Questioner: Annie Category: Advanced Math Private: no Subject: Differentiating Natural ... | |
| distance | 10/22/2006 |
| Q: A airplane is travelling east at 300miles/hr and comes back west at 400miles/hr. Total time it was ... A: Questioner: nihao cai Category: Advanced Math Subject: distanceA airplane is travelling east ... | |
| Pre-calc | 10/19/2006 |
| Q: Can you help me solve........... Tan theta - tan 10 degrees = 1 + tan theta tan 10 degrees A: Questioner: Mia Category: Advanced Math Subject: Pre-calcCan you help me solve........... ... | |
| Implicit Differentiation | 10/17/2006 |
| Q: I cant seem to finish off the following maths sum. Find the slope of the tangent to the curve x ... A: Annie Asks in Category Advanced Math ... Subject: Implicit Differentiation Private: noHi ... | |
| proof by contradiction | 10/17/2006 |
| Q: prove by contradiction that the sum of a rational and irrational number is irrational. A: Kevin Asks in Category Advanced Math ... Subject: proof by contradiction Private: noprove by ... | |
| math / geometry | 10/12/2006 |
| Q: I need to figure out what size socket to buy for a hard to reach hexagonal nut on my car... One side ... A: Jean Asks in Category Advanced Math ... Subject: math / geometryHi, I need to figure out what ... | |
| My daughter's math puzzle. | 10/12/2006 |
| Q: My daughter brought home a series of questions and we figured them all out except this one. 1 2 3 4 ... A: My daughter brought home a series of questions and we figured them all out except this one. 1 2 3 4 ... | |
| quadratic equations-studying algebra | 10/11/2006 |
| Q: to solve the quadratic equation y= x^ -6x +8 =0 why is there 2 equal values? when factoring i get ... A: pam nicholls Asks in Category Advanced Math ... Subject: quadratic equations-studying algebra ... | |
| Conic section | 10/11/2006 |
| Q: I have one question, maybe you can help me? 1. "What interest rate is required for an investment ... A: Pit Asks in Category Advanced Math ... Subject: Conic section Private: noHi I have one ... | |
| advanced algebra | 10/9/2006 |
| Q: can you help me with recursive formula questions? A: Olivia Asks in Category Advanced Math ... Subject: advanced algebra Private: nocan you help ... | |
| probability | 10/9/2006 |
| Q: There are 4 red balls and 2 green balls in bag A. And there are 3 red balls and 5 green balls in bag ... A: Susie Andriani Asks in Category Advanced Math ... Subject: probabilityThere are 4 red balls and ... | |
| Find the Mass | 10/6/2006 |
| Q: My name is Abbie, and I'm studying precalculus.A can with 40 marbles in it weighed 135 grams. The ... A: abbie Asks in Category Advanced Math ... Subject: Find the MassMy name is Abbie, and I'm ... | |
| pRE-cALCULUS | 10/3/2006 |
| Q: I'm currently taking Pre-calculus AND DON'T QUITE UNDERSTAND HOW TO SOLVE MATRICES LIKE THIS ... A: Obed Bernal Asks in Category Advanced Math ... Subject: pRE-cALCULUS Private: noI'm currently ... | |
| precalculus | 10/3/2006 |
| Q: to find the referance andle for an angle (theta) (given in degrees), find the integer n such that 0 ... A: kiah Asks in Category Advanced Math ...to find the reference angle for theta in degrees, find n such ... | |
| triangle side length | 10/1/2006 |
| Q: I have a right triagle. Two sides are 21'7". I think the long side is 30'6". I think the formula ... A: -------------------------------- mike Asks in Category Advanced Math ... Subject: triangle side ... | |
| Calculation with mod | 7/22/2006 |
| Q: Im revising for exams but Ive no idea how to do thisCalculate 71^36 (mod 19) Im pretty sure it isnt ... A: Eoin, You must tell me what subject you are studying. There is something in the subject of number ... | |
| exponent and factors | 7/22/2006 |
| Q: Which of the following (and how) cannot be factor of 2^n*3^k where n and k are positive integers: a) ... A: sweta,Which of the following (and how) cannot be factor of 2^n*3^k where n and k are positive ... | |
| solve y=8x b for x | 7/21/2006 |
| Q: solve y=8x+b for x A: Wally,solve y=8x+b for x -------------------------------- Try this: y = 8x + b - b - ... | |
| math college | 7/17/2006 |
| Q: what are the meanning of sequences and series A: Dyunh, Yourwhat are the meaning of sequences and series ------------------------ Oh, is that all ... | |
| centroid | 7/15/2006 |
| Q: Is it possible for the centroid of a lamina to be a point outside the lamina; for example, if the ... A: Justin, You wrote: Is it possible for the centroid of a lamina to be a point outside the lamina; ... | |
| Gaussian and Cramer's Rule | 6/25/2006 |
| Q: I have last question. How to solve this matrix operation: 1) Given 1 3 2 , find A^T 2 ... A: Eddie, Subject: Gaussian and Cramer's RuleThanks so much. I have last question. How to solve this ... | |
| Gaussian and Cramer's Rule | 6/24/2006 |
| Q: 1) How is this is Solved using Gaussian elimination: x + 2 Y + z =0 -3x + 3 y +2z = -7 4x -2y -3 z ... A: Eddie, You wrote: Subject: Gaussian and Cramer's Rule1) How is this is Solved using Gaussian ... | |
| math | 6/22/2006 |
| Q: wheredo we get the equation y=y2-y1/x2-x1=y2+y1/x2+x1?i hpe that u can answer it as soon as ... A: Aeouluz, Subject: math >> Please, if you send a question, specify the subject better than this. ... | |
| algebra - long division?, also integration using tables | 6/16/2006 |
| Q: I am trying to simplify something so that I can use a table of integrals to integrate. The ... A: Abby, You wrote: Subject: algebra - long division?, also integration using tablesI am trying to ... | |
| laplace | 6/15/2006 |
| Q: do you know anyhting about the laplace transform A: Bob, Not so much, I'm afraid. It has been a long time and I don't have the original books with me ... | |
| Parallela pipe | 6/15/2006 |
| Q: My name is Andy and I have a Parallela pipe. A (3,1,0) B (5,1,0) C (4,5,0) D (3,1,4) I need to ... A: Charlie, One of the major problems I face is that everyone assumes I am familiar with the ... | |
| Matrix state solver | 6/12/2006 |
| Q: I have the following problem: I have a matrix (NxM) with random integers. I can move the columns up ... A: Nikolay, You wrote: Subject: Matrix state solverI have the following problem: I have a matrix ... | |
| 2-[4x-(1-2)]=9(x 4) | 6/12/2006 |
| Q: I'm not sure how to solve.(this is a math 1301) thanks Charlene A: Charlene, You wrote: Subject: 2-[4x-(1-2)]=9(x+4)I'm not sure how to solve.(this is a math 1301) ... | |
| Precalculus | 6/11/2006 |
| Q: I am confused on how to use a half-angle formula to find the exact value of sin 22.5 degrees. ... A: Robert, You wrote: Subject: PrecalculusI am confused on how to use a half-angle formula to find ... | |
| help summarize | 6/8/2006 |
| Q: summarize the general function of exponential and logarithmic functions, give an example of each, ... A: Jannie, Subject: help summarizesummarize the general function of exponential and logarithmic ... | |
| algebra, quadratic models | 6/6/2006 |
| Q: Question - hi, please help me with this difficult, difficult, difficult question!! Suppose a ... A: Hannah, You wrote: Subject:algebra, quadratic models Question - hi, please help me with this ... | |
| algebra | 6/5/2006 |
| Q: Followup To Question - help me find the answer to (2x^2-13x)^x^3+1 Answer - Hi, Bruce, I can't ... A: Bruce, You wrote: ----------------------------- here it is (2x^2-13x-6)^x3^+1=1 ... | |
| hi, please help me with this... | 6/4/2006 |
| Q: please help me with this difficult, difficult, difficult question!! Suppose a bullet is fired on a ... A: Hannah, In the future, you MUST INCLUDE A SUBJECT LINE with the question. Otherwise, there is ... | |
| algebra | 6/3/2006 |
| Q: help me find the answer to (2x^2-13x)^x^3+1 Answer - Hi, Bruce, I can't find the 'answer' to your ... A: Bruce, Followup To Question - help me find the answer to (2x^2-13x)^x^3+1 Answer - Hi, Bruce, ... | |
| Step by Step | 6/3/2006 |
| Q: Tiffany Business Math An estate is split three ways: Greg receives 19 1/2%, Kathleen receives 26 ... A: Tiffany, You wrote: Greg receives 19 1/2%, Kathleen receives 26 3/4%, and Jeff receives the ... | |
| increasing & decreasing lines of math | 5/29/2006 |
| Q: I create stories, and this came up in one of my story lines, so it's just a personal situation. ... A: Gail, It would take too long to completely work this out, but since the S will each propagate a ... | |
| garphing a function | 5/27/2006 |
| Q: Just starting back to school after 5 years and I have been stuck on a problem for a while, if you ... A: Lisa, You wrote: Subject: garphing a functionHi Paul: Just starting back to school after 5 years ... | |
| Algebra Word Problem | 5/11/2006 |
| Q: I need your assistance on one more problem, Paul! I've tried, and I'm stumped! A coffee merchant ... A: J.B., Subject: Algebra Word ProblemI need your assistance on one more problem, Paul! I've tried, ... | |
| Systems Of Linear Equations | 5/10/2006 |
| Q: Solve the following system by addition. If a unique solution does not exist, state whether the ... A: J.B., You wrote: Subject: Systems Of Linear EquationsSolve the following system by addition. If ... | |
| I need help as soon as possible | 5/9/2006 |
| Q: I need to solve these three in terms of x Cos((5pi)/2)+x=-Sin(x) Cos(x)> -radical(3)/2 Sin(2x)<0 ... A: Lee, Subject: I need help as soon as possibleI need to solve these three in terms of x ... | |
| simple factoring | 5/9/2006 |
| Q: I have a very simple question. I'm in pre-calc. How do you factor something like: 9c^2 - 24cd + ... A: Brit, I guess that answers my question. But, in general, you probably are learning an important ... | |
| algebra | 5/8/2006 |
| Q: I have a couple of questions for your review. Thank you. 1)For the rational expression 6x^2 + 9x - ... A: That the correct answer is (b). The problems with the other choices are: a) If you write a ... | |
| algebra | 5/7/2006 |
| Q: I have a couple of questions for your review. Thank you. 1)For the rational expression 6x^2 + 9x - ... A: Matt, Subject: algebraHello, I have a couple of questions for your review. Thank you. 1)For ... | |
| Integration Revised | 5/6/2006 |
| Q: Here's the question again: {t=inf a[1 - e^(-kt)]e^(-bt).dt N| ------------- }t=0 k Solve the ... A: Emma, You wrote: Here's the question again: {t=inf N| a[1 - e^(-kt)]e^(-bt) dt }t=0 k ... | |
| Just a follow up, and having problem with another integration question | 5/5/2006 |
| Q: I asked you about the eight curve, you said that: Vertical when y' is undefined, which means y = 0 I ... A: Emma, You wrote: I asked you about the eight curve, you said that: Vertical when y' is undefined, ... | |
| An Eight Curve (or Gerono Lemniscate): Question revised | 5/4/2006 |
| Q: Sorry, I made a mistake. This is the correct equation: x^4 = 4(x^2-y^2) 1) Find the four points ... A: Emma, An Eight Curve (or Gerono Lemniscate): Question revisedSorry, I made a mistake. This is the ... | |
| The Eight Curve (or lemniscate) differentiation | 5/3/2006 |
| Q: I'm studing maths. Could you provide me with help on thisx^2=4(x^2-y^2) 1) Find the four points ... A: Emma, You wrote: Subject: The Eight Curve (or lemniscate) differentiationI'm studing maths. Could ... | |
| linear combonations | 5/2/2006 |
| Q: 6.2x-0.5y=-27.8 0.3x+0.4y=68.7 A: Samantha, Subject: linear combInations6.2x-0.5y=-27.8 0.3x+0.4y=68.7 ... | |
| Percent Equation | 5/2/2006 |
| Q: I dont get how to do these problems they are very confusing. can u show me how to do one...lets ... A: Jennifer, Subject: Percent EquationI dont get how to do these problems they are very confusing. ... | |
| Volume of odd-shaped swimming pool | 4/29/2006 |
| Q: I have an interesting, and challenging word problem for you that I cannot seem to figure out. Here ... A: Lindsay, YourHi, I have an interesting, and challenging word problem for you that I cannot seem ... | |
| Provement | 4/22/2006 |
| Q: Hallo Sir; Thank you for your efforts. If B is a set,includes the elements B={0,3,6,9,12,....etc.}, ... A: Ahmad, Subject: ProvementHallo Sir; Thank you for your efforts. If B is a set,includes the ... | |
| Trigonometry | 4/21/2006 |
| Q: One hundred dollars deposited in a bank that compounds interest quarterly yields $107.50 over 1 ... A: Colleen, You wrote: Subject: TrigonometryOne hundred dollars deposited in a bank that compounds ... | |
| Trig - simplifying exponents | 4/11/2006 |
| Q: Simplify: 2^-1/(2^-2 +2^-3) It says hint: multiply numerator and denominator by 2^3 So, it is 2 ... A: Colleen, Subject: Trig - simplifying exponentsSimplify: 2^-1/(2^-2 +2^-3) It says hint: multiply ... | |
| Probability | 4/8/2006 |
| Q: In a county where 54% of the voters are Democrats and 46% are Republican, what is the ... A: KevinIn a county where 54% of the voters are Democrats and 46% are Republican, what is the ... | |
| Probability | 4/8/2006 |
| Q: Tom and Alice work independently in an attempt to solve a certain problem, i.e. whether one of them ... A: Kevin, You wrote: Subject: ProbabilityTom and Alice work independently in an attempt to solve a ... | |
| group theory | 4/7/2006 |
| Q: Let G be group of cardinality pq, where p and q are distinct primes. Show |Z(G)| = 1 or pq Thank ... A: Nadia, Unfortunately group theory is not like calculus. In calculus, there is a very standard set ... | |
| Percentages | 4/6/2006 |
| Q: Suppose that 35% of a company's television sets are manufactured at a plant in Portland and 65% at a ... A: Kevin, You wrote: Subject: PercentagesSuppose that 35% of a company's television sets are ... | |
| probabilty | 4/4/2006 |
| Q: . Solve the following questions correct to 3 decimal places. There are 3 men and 6 women are on a ... A: Kevin, You wrote: Subject: probabiltySolve the following questions correct to 3 decimal places. ... | |
| Arc Length | 3/31/2006 |
| Q: Assume x=f(t), y=g(t), and arc lenth=ds, then ds=sqrt[(f')^2+(g')^2]dt. If y=h(x), then ... A: Ron, You wrote: Subject: Arc LengthAssume x=f(t), y=g(t), and arc lenth=ds, then ... | |
| Trigonometry | 3/31/2006 |
| Q: I have two. I hope that's okay. The section is solving trig equations. (1) 2sin(30 + x)=3cosx (The ... A: Colleen, You wrote: Subject: TrigonometryI have two. I hope that's okay. The section is solving ... | |
| Probability | 3/29/2006 |
| Q: The probability that Ann will go to the beach this summer is 0.4 and the probability that she will ... A: Kevin, You wrote: The probability that Ann will go to the beach this summer is 0.4 and the ... | |
| Probability/ Combination | 3/26/2006 |
| Q: A tennis match is played where the winner must win 2 sets to win the match. (Think of the outcomes ... A: Kevin, You wrote: Subject: Probability/ CombinationA tennis match is played where the winner must ... | |
| Does this not make sense, or am I crazy??? | 3/25/2006 |
| Q: I'm actually taking Honors Trigonometry and Pre-Calculus this year (math has always been one of my ... A: Brittney, You wrote: Does this not make sense, or am I crazy??? >> Do you really want me to ... | |
| vector equation | 3/25/2006 |
| Q: The vector equation r=a+km has r parallel to km where k is a parameter of any variable, and a and m ... A: Kenji, You wrote: Subject: vector equationHi, The vector equation r=a+km has r parallel to km ... | |
| Mathematical Analysis Problem | 3/20/2006 |
| Q: i emailed you a week or so ago with a problem and you got back to me with a solution but said you ... A: Jake, I have sent the problem on to one of my daughters. (I no longer have students, just ... | |
| calendar | 3/16/2006 |
| Q: I'm sorry if i bother you. I've been away and didn't check the solution you sent to me for three ... A: Pharell, I received a similar question from 'Neil' yesterday. Here is a copy of his question and ... | |
| Linear Programming | 3/15/2006 |
| Q: A problem is given that states Maximize p = 45x + 45y subject to 10x + 15y <= 350 25x + 10y <= ... A: Kevin, You wrote: Subject: Linear ProgrammingA problem is given that states Maximize p = 45x + ... | |
| probability | 3/14/2006 |
| Q: As a company manager for Claimstat Corporation there is a 0.40 probability that you will be promoted ... A: Ronald, You wrote: Subject: probabilityAs a company manager for Claimstat Corporation there is a ... | |
| calendar | 3/13/2006 |
| Q: Please how do i get a formula that gives the day any date falls on? Thanking you in advance. A: Pharell, I received a similar question from 'Neil' yesterday. Here is a copy of his question and ... | |
| cross product | 3/7/2006 |
| Q: I need help in understanding cross product. "cross product is defined as the vector which is ... A: Kenji, You wrote: Subject: cross productHi. I need help in understanding cross product. "cross ... | |
| PLEASE HELP!!!!I need the answer by monday | 3/4/2006 |
| Q: 1) My name is Kimberley i need the answer asap! 2) Theanswer the following questions about this ... A: kim, You wrote: Subject: PLEASE HELP!I need the answer by monday >> That is not a suitable ... | |
| ------------------------- ... | 3/3/2006 |
| Q: A young man is 17 years old, his sister is 34 years old, twice his age. If they were both immortal, ... A: Reggie, Followup To Question - A young man, Albert, is 17 years old, his sister, Betsy, is 34 ... | |
| combination problem | 3/2/2006 |
| Q: there are 8 different toppings that you can choose to include or leave off of a hamburger. You can ... A: Kevin, You wrote: Subject: combination problemthere are 8 different toppings that you can choose to ... | |
| Combination problem | 3/2/2006 |
| Q: A large van is being used for a picnic. There will be 6 people riding in the van, and there are 6 ... A: Kevin, You wrote: Subject: Combination problemA large van is being used for a picnic. There will ... | |
| calculus and planes | 2/28/2006 |
| Q: and for your correction on my use of English. I, however, have two questions this time around. 1)How ... A: Pharell, Hello, Thank you for your last solution, and for your correction on my use of English. I, ... | |
| math | 2/25/2006 |
| Q: for 2 points to be connected to each other there is one link. For three points there are 3. For four ... A: Colin, You wrote: Subject: mathfor 2 points to be connected to each other there is one link. For ... | |
| probability! | 2/23/2006 |
| Q: Please how am i supposed to find the probability of getting four aces when ten cards are selected ... A: Pharell, You wrote: Subject: probability!Please how am i supposed to find the probability of ... | |
| Progressive increments | 2/23/2006 |
| Q: I am attempting to determine equal progressive increments. On a spreadsheet I have twelve sections ... A: Liala, You wrote: Subject: Progressive incrementsI am attempting to determine equal progressive ... | |
| Conversion | 2/22/2006 |
| Q: Is there a formula for converting mg/dl into percent? A: Karen, You wrote:Is there a formula for converting mg/dl into percent? ------------------------ ... | |
| A company manufactures checker... | 2/21/2006 |
| Q: A company manufactures checker sets and chess sets. Suppose each day the company has available 1900 ... A: Kevin, YourA company manufactures checker sets and chess sets. Suppose each day the company has ... | |
| integration | 2/21/2006 |
| Q: I have problem integrating ((secX)^3)/(1-(tanx)^3)dx Please help. Thank You. A: Kenji, Sorry, but this is a very difficult integration. (It is possible you made an error in ... | |
| Ice hockey | 2/17/2006 |
| Q: my name is Jennifer, i dont exactly know what cartagory this would be under but my geometry teacher ... A: Jennifer, [Does it have to be ice hockey?] Here's an idea. I was watching the event called 'Mogul ... | |
| Trigonometry | 2/16/2006 |
| Q: I am wondering if you can walk through the steps of how to solve equations using a TI-83 calculator. ... A: Colleen, YourI am wondering if you can walk through the steps of how to solve equations using a ... | |
| 1. (Answers should be accurate... | 2/15/2006 |
| Q: 1. (Answers should be accurate to at least 2 decimal places.) A farmer has a 240 acre farm on which ... A: Kevin, You wrote: Subject:1. (Answers should be accurate to at least 2 decimal places.) A farmer ... | |
| formula for cubic feet conversion | 2/13/2006 |
| Q: How do I change the dimensions of a barrel into cubic feet? A: Ronnie1a, 1. Determine the number of cubic inches in a barrel. Use the formula for the volume of a ... | |
| i am a 8th std student.... | 2/13/2006 |
| Q: i am a 8th std student. x to the power0=1[xo=1]. how itpossible when any number is multiplied ... A: Kiruthika, You wrote:i am a 8th std student. x to the power 0 = 1[xo=1]. how is it possible when ... | |
| linear algebra | 2/12/2006 |
| Q: O is for the orthogonal groups. U is for the unitary groups. These are matrix groups of group ... A: LeMarc, OK, that's a start. Next step: 1. Send along precise definitions of 'orthogonal group' and ... | |
| math review | 2/10/2006 |
| Q: Sean invests $10,000 at an annual rate of 5% compounded continuously according to the formula ... A: Lauren, YourSean invests $10,000 at an annual rate of 5% compounded continuously according to the ... | |
| Linear Algebra - Vector Spaces | 2/8/2006 |
| Q: .. My Question is: Let B be a BASIS of a vector space V and let W be a SUB-SPACE of V,then Let B' ... A: Ramy, YourHello I'm Ramy and I'm from Egypt... My Question is: Let B be a BASIS of a vector space ... | |
| Alg. 2 | 2/5/2006 |
| Q: 1. The valley high school student council is sponsoring a dance. They anticapte that 500 student ... A: Gemini, You have asked a lot of questions here. The purpose of this site is not to have someone do ... | |
| Alg. 2 | 2/4/2006 |
| Q: 1. Identify the direction of the opening of the parabola defined by y=2x-8-x^2 2. Identify the ... A: Megan, Your Questions: 1. Identify the direction of the opening of the parabola defined by ... | |
| Induction and Recursion | 2/3/2006 |
| Q: I'm working on a proof for mathematical induction that the sum of the first n numbers is equal to ... A: Eddie, YourHello, I'm working on a proof for mathematical induction that the sum of the first n ... | |
| Trigonometry | 2/2/2006 |
| Q: Mike Trigonometry tan^2 (arctan(y/x)) was simplified to y^2 / x^2 in a problem solution, but I'm not ... A: Mike, Yourtan^2 (arctan(y/x)) was simplified to y^2 / x^2 in a problem solution, but I'm not sure ... | |
| Stumped, please help | 2/2/2006 |
| Q: I can't seem to solve this problem. I am setting up a bonus program for our sales people. Each sales ... A: Bill, I am afraid your question involves too much business jargon to make any real sense for me. ... | |
| if there was a triangle with... | 1/31/2006 |
| Q: if there was a triangle with the sides measuring 32.5 and 25 what would the third measurment be? A: Tiara, Yourif there was a triangle with the sides measuring 32.5 and 25 what would the third ... | |
| Trigonometry | 1/31/2006 |
| Q: I asked you a question yesterday and got a response that my answer was available, but I can't access ... A: Colleen, I am not sure what happened to the answer I sent, but I know there was a lot of trouble at ... | |
| Trigonometry | 1/30/2006 |
| Q: I have to solve these algebraically or graphically to the nearest hundredth of a radian with ... A: Colleen,I have to solve these algebraically or graphically to the nearest hundredth of a radian with ... | |
| Measuring mass volume length and metric system | 1/29/2006 |
| Q: My proffesor gave me a paper to do consisting of uestions like a baseball is about _ cm. in diameter ... A: Kerrie, YourMy professor gave me a paper to do consisting of questions like a baseball is about _ ... | |
| Algerbra questions :D | 1/26/2006 |
| Q: I cant figure these out any help would be awsome. Write the following using eponents. ... A: Ron, Welcome to AllX. This is obviously your first time here, so a few requests: 1. If you have ... | |
| vector planes | 1/26/2006 |
| Q: I worked it as i was taught but i didnt get the answer. the ans. to the foll. question is: r . ... A: Jason, YourI worked it as i was taught but i didnt get the answer. the ans. to the foll. question ... | |
| Spread Statistics | 1/24/2006 |
| Q: > Hi, Ellis, ... > Yes. Seriously? A one-word answer? What IS the solution? Is a formula, set of ... A: > Hi, Ellis, ... > Yes. Seriously? A one-word answer?? What IS the solution? Is a formula, set ... | |
| Spread Statistics | 1/24/2006 |
| Q: > ...I haven't done much geometry in the last > 50 years, but who knows? Okay, here goes... As ... A: Ellis, Your question was: Okay, here goes... As with many good inquiries, this one starts with ... | |
| Calculating percent incline on treadmill | 1/23/2006 |
| Q: We bought a treadmill about a week ago. The treadmill has 15 different positions for the incline, ... A: David, YourWe bought a treadmill about a week ago. >> and it still works? The treadmill has 15 ... | |
| Matrix | 1/22/2006 |
| Q: The inverse of the following matrix can be found by performing a single row operation (once the ... A: Kevin, Your MatrixThe inverse of the following matrix can be found by performing a single row ... | |
| Trigonometry | 1/22/2006 |
| Q: As a survey student I am told to avoid angles close to zero or 180 in the field,as the trigonometry ... A: Colin, YourAs a survey student I am told to avoid angles close to zero or 180 in the field,as the ... | |
| Geometry? | 1/19/2006 |
| Q: Can you answer a geometry question? It isn't homework (i'm a professor, and another allexperts ... A: Ellis, Well, give it a try. I haven't done much geometry in the last 50 years, but who knows? I ... | |
| Trigonometry | 1/16/2006 |
| Q: I am supposed to solve this without using tables or a calculator. Here is the problem: log(base ... A: Colleen, You wrote: -------------------- I am supposed to solve this without using tables or a ... | |
| Trig Reduction | 1/15/2006 |
| Q: I am reviewing an assignment solution and am very puzzled how the solution goes from one term to the ... A: Brian, You wrote: ------------------------ Hi Paul, I am reviewing an assignment solution and am ... | |
| equations | 1/13/2006 |
| Q: K=LMN what is the formula for M? thank you. A: Fred, In K = LMN, you want to solve the equation for M. All you have to do is divide by the ... | |
| Algreba 2 | 1/8/2006 |
| Q: How are you well, i need to factor out these problems completly, and it is for alegrbra 2. thank ... A: Val, Your question - Factor these completely. {That's better -- now I know what you need.) You ... | |
| Algreba 2 | 1/7/2006 |
| Q: 1) x^6+125y^6 2) 8c^3-64d^3 3) y^3-27 4) a^3+1 5) y^8-38y^4+72 6) c^2^x-49D^2 7) 16a^2-4b^2 ... A: Val, Every problem requires two things: Something to do. Something to do it to. You have left out ... | |
| math problem | 11/27/2005 |
| Q: could you please help me with these, 1. Distinguish between a relation and a function. State a ... A: Jesslyn, This material is really Business Math, and, for the most part, outside my main fields of ... | |
| trigo. | 11/26/2005 |
| Q: I was wondering how I can prove that The the summation of sinX+sin2X+sin3X...sinnX to n terms ... A: KJ, This will involve the following: 1. Mathematical induction. (If you don't know what this is, ... | |
| compound interest | 11/22/2005 |
| Q: Could you tell me what the quaterly compound interest earned over two years time on a two hundred ... A: Shelly, Could you tell me what the quarterly compound interest earned over two years time on a two ... | |
| Finding the average of two speeds. | 11/22/2005 |
| Q: How exactly does one find the average of two speeds travelled over equal distance. For example, if ... A: Jeremy, --------- YOUR QUESTION --------------- How exactly does one find the average of two speeds ... | |
| related rates | 11/21/2005 |
| Q: 1) the minute hand of a certain clock is 4 in. long. starting from the moment when the hand is ... A: Amy, once again. [SORRY - CLICKED THE WRONG SPOT BEFORE.]1) the minute hand of a certain clock is 4 ... | |
| Complex Analysis | 11/19/2005 |
| Q: I was curious if you know complex analysis(complex variables) -matt A: Matt, Oh, boy -- it has been some time since I did that, and I never taught the subject. But send ... | |
| LCM College Algebra | 11/18/2005 |
| Q: x-2 3 -------, ---- 3x(x-2) 6x2 This is 6x squared not 6 times 2 These are ... A: David, x-2 3 -------, ---- 3x(x-2) 6x^2 These are fractions. How do you find the ... | |
| Maths | 11/17/2005 |
| Q: Algebra Let A be the following Matrix A= [ 1 , 2 , 3] [ 2 , 4 , 6] [ 3 ... A: Sam, You want: x + 2y + 3z = 0 2x + 4y + 6z = 0 3x + 6y + 10z = 0 If these three equations are ... | |
| Inverse Functions | 11/16/2005 |
| Q: Studying College Algebra Suppose that j(x)= h^-1(x) and that both j and h are defined for all ... A: Colleen, Suppose that j(x)= h^-1(x) and that both j and h are defined for all values of x. Suppose ... | |
| derivatives on natural exponentials | 10/29/2005 |
| Q: find the derivative of y with respect to x, t, or theta, as appropriate. 1) y=ln(2e^-tsint) 2) ... A: Amy, FIRST, a request for future problem submissions. If you have several problems that you can't ... | |
| derivatives with natural exponentials | 10/29/2005 |
| Q: find the derivative of y with respect to x, t, or theta, as appropriate. 1) y=(x^2-2x+2)e^x 2) ... A: Amy, Your basic rule: D(e^x) = e^x, which I will usually write as exp(x) combines with all the ... | |
| Maths | 10/28/2005 |
| Q: Consider a cone that is 8 cm tall & has a base radius of 3 cm that is standing so its point is ... A: Suseela, In your problem: Consider a cone that is 8 cm tall & has a base radius of 3 cm that is ... | |
| 2=1 | 10/28/2005 |
| Q: a=b multiply both sides by a a^2 = ab add a^2-2ab to both sides a^2+ a^2-2ab = ab+a^2 -2ab ... A: Sommer, GIMME A BREAK! This is one of the old chestnuts. You will REALLY find out what happened ... | |
| numerical values of derivatives-chain rule? | 10/26/2005 |
| Q: find the value of (f * g)' at the given value of x. 1) f(u)=(2u)/(u^2+1), u=g(x)=10x^2+x+1, x=0 A: Amy, This is like the last one. 1) Find dy/du from y = 2u/(u^2 + 1) -- use the quotient rule. 2) ... | |
| Black O wall drawings | 10/23/2005 |
| Q: What is the maths behind the Black O wall drawings by Kerrie Poliness? See ... A: Nick, From what I can see, the figures are just some kind of polyhedral figure of no particular ... | |
| derivatives | 10/20/2005 |
| Q: find the derivatives. 1) r=sec sqrt(theta)tan(1/theta) find dy/dt. 2)y=sin^2((pi)t - 2) A: Amy, By now you should be getting the hang of it. Be careful in how you write things, however -- ... | |
| applied functions:variation | 10/20/2005 |
| Q: The pressure P os a sample of gas is directly proportional to the temperature T and inversely ... A: Jennifer, "P is directly proportional to T" is generally expressed as: P = k1 T, where k1 is some ... | |
| Mathematical Induction | 10/16/2005 |
| Q: How would you find a general equation for 1^k + 2^k + 3^k + ...+ n^k = A: Timothy, Alas, I am not aware of a general formula for this type of expression. There are some ... | |
| derivatives | 10/15/2005 |
| Q: find the first and second derivatives of the functions 1) r=(theta-1)(theta^2+theta+1)/theta^3 2) ... A: Amy, (again) Isn't calculus fun? (T - 1)(t^2 + t + 1) 1) Write r = -------------------- ... | |
| derivatives | 10/15/2005 |
| Q: find the derivatives of the functions. 1) g(x)= (x^2-4)/(x + .05) 2) v= (1-t)(1+t^2)^-1 A: Amy, Looks as if you have a lot of derivative homework this weekend. These two are both quotient ... | |
| Findig the location of a Centroid! | 10/12/2005 |
| Q: I am trying to answer this question but keep getting it wrong. I have a semi-circular Laminar that ... A: Adam, I am not sure what a polo mint looks like (I was always partial to Milky Way bars.) but I am ... | |
| Problem Solving Formulas | 10/9/2005 |
| Q: We are working on geometric and arithmetic formulas, I can't seem to get a grasp on these. Can you ... A: Sandy, The formulas you are talking about simply show a relationship between two quantities, such ... | |
| induction | 10/5/2005 |
| Q: I have a question on mathematical induction: Prove by MI that: ((n+1)/n)^n <= 3 for all ... A: Sobhi, Sorry I don't have a proof for you. The sequence is well known to have a limit, which is ... | |
| Growth and Decay | 10/4/2005 |
| Q: 1.Suppose a disease is transmitted from individual to two others during the period of a week. Each ... A: Nikki, I answered this for Casey --perhaps the two of you could get together and send one question. ... | |
| Algebra Equations | 10/3/2005 |
| Q: Is there more than one possible answer for this equation: y/3 * 6 = 4y/8 * 4? If y/3, 6, 4y/8, and ... A: Yes. 2y = 2y, which is the simplification, is an identity, so any value of y is a solution. I ... | |
| please verify methods 1 and 2 and explain method 3 | 10/3/2005 |
| Q: Integrate wrt x 2\(e^x +1) By 1 using the substitution u = e^x By 2 multiplying through out by ... A: Andrew, As you can see, the (annoying/delightful) feature of second-semester calculus is the ... | |
| solving for an unkown matrix | 10/1/2005 |
| Q: I have three matrices M, A and B in an equation M * A = B M is 5x5 A and B are both 5 row by 1 ... A: Ryan, I'm not sure I can give you much more than this: You are trying to find the 25 elements of a ... | |
| drawing a cogwheel | 10/1/2005 |
| Q: I need to draw a cogwheel (needs to be accurate). I think that involves dividing a circle into equal ... A: Emile, Your question was: ------------- I need to draw a cogwheel (needs to be accurate). I think ... | |
| Zero in the denominator | 9/29/2005 |
| Q: How can I relate to my 8th grade algebra I students that a fraction with a value of zero in the ... A: Kellie, Try this approach: What is division, really? What does it mean to, say, divide 56 by 7? It ... | |
| derivatives | 9/28/2005 |
| Q: i need help on a question. A wire 30 cm. long is to be cut into two pieces. One piece is bent into ... A: Charlene, I'm not sure how you set it up (there could be more than one way) but to differentiate: ... | |
| small conversion question! | 9/27/2005 |
| Q: My name is Assaf and I have a question about conversion: I have to convert inches into: Yards, feet ... A: Assaf, You want to convert many 'little pieces' (inches) into some 'big' pieces (yards), some ... | |
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Paul Klarreich
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I can answer questions in basic to advanced algebra (theory of equations, complex numbers), precalculus (functions, graphs, exponential, logarithmic, and trigonometric functions and identities), basic probability, and finite mathematics, including mathematical induction. I can also try (but not guarantee) to answer questions on Abstract Algebra -- groups, rings, etc. and Analysis -- sequences, limits, continuity. I won't understand specialized engineering or business jargon.
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