| Subject | Date Asked |
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| 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 ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| Subsets | 11/16/2009 |
Q: Consider the following variables: Z A1 ...
A: Questioner: Ryan Country: United States Category: Advanced Math Private: No Subject: Easy ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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: ...
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| 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. ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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. ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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 ---------- ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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. ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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. ...
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| 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 ...
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| 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: ...
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| 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: ...
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| 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: ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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! ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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) ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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) ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 = ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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) ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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! ...
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| 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, ...
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| 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 ! ...
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| 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 ...
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| 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 ...
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| 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\ ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| Factoring quadratic equations | 3/3/2008 |
Q: What makes certain quadratic equations unfactorable?
A: Questioner: Heather Category: Advanced Math Private: No Subject: quadratic equationsWhat ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 & ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 - ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| Trigonometric equations | 12/20/2007 |
Q: sin^2x+2sinx-3=0
A: Questioner: jon Category: Advanced Math Private: No Subject: solving for principal ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ---------- ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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) ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| Trigonometric identities | 12/18/2006 |
Q: sinx+9sinx/tan2x)
A: Questioner: diana Category: Advanced Mathsinx + 9 sinx/tan2x) ......................... Hi, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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" ...
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| 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 + ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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........... ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 + ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| -------------------------
... | 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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? ------------------------ ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 _ ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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) ...
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| 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 ...
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| 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 -- ...
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| 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 ...
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| 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 ...
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| 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 = -------------------- ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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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