| Subject | Date Asked |
|
| finding domains of a function | 12/18/2008 |
Q: So I am trying to work on a problem that is asking the domain of f(x)= the square root of 16-x/x ...
A: This is not as bad as it sounds. Since (16-x)/x^3 is inside a square root, it has to be >= 0. Now, ...
|
| simplifying rational expressions | 12/18/2008 |
Q: (x-1)/6 + x/6 x-1+x/6 = 2x-1/6= x-1/3 I'm trying to find out if this answer is correct. I have to ...
A: You have done this well. In my opinion, you have to leave it as ...
|
| factoring | 10/31/2008 |
Q: I am trying to factor x cubed - 8 =0. I got (x-2) (x^2 + 2x + 4). I know that x can = 2. Can the ...
A: Well, you sound as if you are right on the money as far as the solution goes. What you have is ...
|
| Algebra | 9/23/2008 |
Q: 2x-3 = x-2 ____ ___ 3 2
A: The easiest thing to do with a proportion is to cross-multiply: (2x - 3) / 3 = (x - 2) / 2 --> ...
|
| How Could I help My Son | 9/16/2008 |
Q: I am not a very educated man myself. I want to help my son to improve in Math. I got a website ...
A: I'm basically a high school teacher all my life, so multiplication tables and the like are things I ...
|
| Geometry | 9/11/2008 |
Q: A rectangle has been defined as a parallelogram in which one of the angles is a right angle. Use ...
A: I started to answer this before, but my computer went wacky right in the middle of it. Anyway, I ...
|
| Quadratic equation | 8/31/2008 |
Q: 1) a boy buys X eggs at (x-8) cents each and(x-2)rashers of bacon at (x-3) cents each if the total ...
A: 1) Okay, the equation we get is x(x - 8) + (x-2)(x-3) = 175 (Leave units in ...
|
| Compounded Interest | 7/28/2008 |
Q: Need formula to determine the following example: Begin with a $1,000.00 balance and compound this ...
A: I believe the formula you want is B = P(1 + (r/n))^(nt) Where B= balance ...
|
| Number-related problems | 7/21/2008 |
Q: Use a system of equations to solve each problem. 1. The sum of two numbers is 42. Their difference ...
A: 1. Okay, we have x + y = 42 x - y = 18 so let's add these equations: ...
|
| Colored M&Ms (matrecis) | 5/9/2008 |
Q: You have a jar filled with 1,500 brown, red, yellow, green and blue m&ms. Primary colors (red, blue, ...
A: Sorry it took so long to get back to you -- I got caught up in Mother's day weekend, and lost track ...
|
| Algebra 1 | 5/7/2008 |
Q: Express, in terms of x, the mean of (4x^2-6), (2x^2+3x), and (-13x+3).
A: Okay, the mean is basically the average of the three expressions, so we have to add them, then ...
|
| TIME SPEED DISTANCE | 4/13/2008 |
Q: can you help with the following question I have tried to use d=t x r A plane leaves point A and ...
A: You're doing everything right... Plane A's distance is d =100t, plane B's distance d = 200t You ...
|
| math compound interest | 4/12/2008 |
Q: I have 260.00 invested at 5% annually for 4 years what would my total be at the end of the 4 year ...
A: This is a typical financial problem students get that is difficult to do if you don't have the ...
|
| PreCalculus | 4/9/2008 |
Q: Given the rational function: 3/x-2, Algebraically,find the x-intercepts, y-intercepts;any ...
A: Okay, lets see, we have : y = 3 / (x-2) The vertical asymptote will show up when the ...
|
| conflict between parent & teacher over math instruction | 3/9/2008 |
Q: I am at loggerheads with my student's math teacher and the administration. They are using McDougal ...
A: I'm probably not going to be much help here, because I really don't feel qualified to get into the ...
|
| Probability | 2/9/2008 |
Q: If I have 7 red and 5 blue marbles in a bag, the probability of me pulling a red from the bag is ...
A: Well, no. Since each trial is independent, and you are putting the marbles back in the bag, each ...
|
| Ap calculus | 1/1/2008 |
Q: Find dy/dx if x^2+y^2=2xy
A: There are a couple ways you could approach this. I'll do the long way first: d/dx [x^2 + y^2 = ...
|
| Maths Help! | 12/27/2007 |
Q: Hey, i Have A Maths Test In About 2 Weeks And I Dont Really Understand Some Of The Things That Are ...
A: Okay, you can learn this easily. Don't panic. In equations like the one you wrote, use reverse ...
|
| 10th grader struggling with math | 11/4/2007 |
Q: I hope I'm asking the right person this question. My daughter, who's in 10th grade, is an honor ...
A: Not that its any consolation, but you are not alone in this situation. I have encountered this as a ...
|
| PSAT | 10/20/2007 |
Q: Do you know if you are allowed to use scratch paper to do math on the PSAT?
A: It's my understanding that you cannot use any additional scratch paper on the PSAT or SAT tests--but ...
|
| Minutes between class periods | 9/22/2007 |
Q: Steve. I'm writing a short story about a kid in junior high. I'm trying to find out the following: ...
A: A novel idea! In the school I retired from, our class periods were 44 minutes long (don't know ...
|
| probability and a time question please help | 8/24/2007 |
Q: first one is.. what are the possible probabilities that can be formed with ABCD. second question ...
A: Well, for the first question, when you say "probabilities", if you mean "arrangements" or what are ...
|
| continuity | 8/24/2007 |
Q: i want to ask that if a graph of a continuous function is broken at finite points then will it ...
A: 1. When you rotate through 90 degrees (I assume you mean a positive rotation), the point moves ...
|
| terra nova test scores | 8/22/2007 |
Q: How do I get a copy of my childs terra nova test scores if the school she took them in is no longer ...
A: I don't know where you're writing from, but even if her particular school closed down, the district ...
|
| continuity | 8/22/2007 |
Q: i want to ask that if a graph of a continuous function is broken at finite points then will it ...
A: This is an example of an infinite alternating series. It has a common ratio of -1, and is said to ...
|
| continuity | 8/18/2007 |
Q: i want to ask that if a graph of a continuous function is broken at finite points then will it ...
A: Well, I think the language here is a little bit of a problem. First of all, if you have "a graph of ...
|
| Plane Trigonometry | 8/17/2007 |
Q: I'm trying to reteach myself some math after 10 years. The question is. . . The point (x,3) is 4 ...
A: Okay, we're just going to use the distance formula: d(p1,p2) = sqrt[(x1 - x2)^2 + (y1 - y2)^2] ...
|
| Math | 8/13/2007 |
Q: I have that is 24 feet long, 18 feet wide and 9 feet high. How many square yards of wallpaper are ...
A: First, convert the measurements to yards: Length: 24 feet = 24/3 = 8 yds Width: 18 feet = ...
|
| math | 8/10/2007 |
Q: A basketball team has won 50 games of 75 played .The team still has 45 games to play .How many of ...
A: Okay, if they need to win 60% of their games, then the 75 they've played + the 45 left means that ...
|
| math | 8/10/2007 |
Q: A room is 24 feet long, 18 feet wide, and 9 feet high. How many square yards of wallpaper are needed ...
A: I think the easiest thing to do is convert the feet dimensions to yards before we start: Length: 24 ...
|
| math question | 8/8/2007 |
Q: A rectangle and a triangle have equal areas. The length of the rectangle is 12 inches, and its width ...
A: This will be easy if we just use the formulas for area of each figure. The rectangle formula is A = ...
|
| Calculas | 7/17/2007 |
Q: The acceleration of a particle is 4m/s^2.find an equation for its velocity v and distance s at any ...
A: Okay, let's first agree to use INT( ) as a symbol for an indefinite integral. To solve these types ...
|
| geometry | 7/17/2007 |
Q: .. I was just wondering if U could tell me why is that in a circle the circumference and diameter ...
A: Well, I'm not really sure that I can explain this too well. Its just that any measurement doesn't ...
|
| Calculus | 7/16/2007 |
Q: I know you probably dont mind answering another question, but I feel kind of bad asking right away ...
A: Hey, only 30 minutes away! That's great!!! Good luck on your exam! Okay, here, you want to do ...
|
| Calculus | 7/16/2007 |
Q: I have been working on logarithms recently and came across one problem that I havent seen before, I ...
A: Okay, let's take this in stages: For the exponent, log(5) 5 basically says "what power of 5 gives ...
|
| Calculus | 7/12/2007 |
Q: I was wondering if you could give me a hand with this problem. The answer I got was 0.48m/s, I do ...
A: Well, I think you ARE correct! If you call the distance from the woman to the wall x , the length ...
|
| CALCULUS | 7/4/2007 |
Q: Find the x-intercept,y-intercept,end behaviour, symmetry, maximum and minimum points, intervals of ...
A: For the x-int, set y = 0 : 0 = x^3 + x^2 - 20x 0 = x (x^2 + x - 20) ...
|
| CALCULUS | 6/28/2007 |
Q: This is the correction to the question I asked you: Ship A is sailing south at 24km/h while ship B ...
A: Okay, we have basically this situation: A(24 km/hr) | | 48 ...
|
| Identifying the Hypotenuse | 6/21/2007 |
Q: hey am can u name the hypotenuse of each right angled triangle theres differants triangles with ...
A: Well, I can't see your triangles, but finding the hypotenuse is fairly easy. If you notice all your ...
|
| Calculus | 6/20/2007 |
Q: I was wondering if you could help me with this question. The steps you follow to maximize a ...
A: The reason why you use the same basic steps is because a max and a min are both examples of what are ...
|
| CALCULUS | 6/19/2007 |
Q: Determine the derivative of: i) y=sqrt(x^3+e^-x+5) ii) y=2x^3e^4x
A: Okay, on the first one, you need to use the chain rule: y = sqrt( x^3 + e^-x + 5) = (x^3 + e^-x + ...
|
| linear equations and parabolas | 6/6/2007 |
Q: A couple questions. 1. In linear equations, what does "for every discrete value of x there is only ...
A: 1. This is usually seen in the definition of a function. By the word "discrete" is meant ...
|
| algebra question | 6/6/2007 |
Q: I am having difficulty with thisRita rows 12km upstream and 12km downstream in three hours. The ...
A: Pam, Throughout the solution I sent you, we let "s" = the speed of the stream. Down near the ...
|
| algebra question | 6/6/2007 |
Q: I am having difficulty with thisRita rows 12km upstream and 12km downstream in three hours. The ...
A: These problems all revolve around the equation D = R * T (dist = rate * time) ...
|
| Standard Form | 6/4/2007 |
Q: I have been asked a challenging question by my math teacher. I was asked to identify 10 places where ...
A: Well, you don't specify standard form of "what"?, so I've just listed ten I could think of in ...
|
| CALCULUS | 6/1/2007 |
Q: The population of the bacteria culture is P(t)=20t^3+150t+1000. Calculate how many bacteria exist in ...
A: This is a quick one. For P(10), just substitute: P(10) = 20(10)^3 + 150(10) + 1000 = 22,500 For ...
|
| CALCULUS | 5/31/2007 |
Q: Find the domain, x-intercepts, y-intercepts, symmetry, asymptotes, intervals of increase or ...
A: Alright, a full analysis, yes? Okay, let's go right down the list: Domain: A quotient of two ...
|
| Calculus | 5/27/2007 |
Q: I was working on this sketch of a curve and had some issues trying to find the point of inflection, ...
A: Yeah, these fraction functions can be a real pain because of having to use the quotient rule. ...
|
| Calculus | 5/22/2007 |
Q: the following question is one that I have half completed. I was hoping you may be able to answer it ...
A: Okay, first of all, since we have a 4th-degree polynomial with a positive lead coefficient, its end ...
|
| CALCULUS | 5/20/2007 |
Q: A rectangular field is going to be enclosed and divided into two separate rectangular areas. Find ...
A: Alright, if you diagram the situation, you have a rectangle with a vertical segment inside it, ...
|
| diff equations | 5/13/2007 |
Q: The surface area of a pond is 500m^2. The area of weed on the surface of the pond is increasing at ...
A: Okay, let's let W stand for the area of weed on the surface. The the differential equation we have ...
|
| CALCULUS | 5/9/2007 |
Q: y=x^2/1-x^2 Find the itercepts, symmetries, vertical and horizontal asymptotes, maximum and minimum ...
A: Sorry about the delay--lots of family problems here to deal with. Okay, let's go right down the ...
|
| Calculus | 4/25/2007 |
Q: Im trying to finish off this unit I am working on, and I have completed this question the best I ...
A: Hey Rob, Ok, let's try this and see what happens. Quotient Rule Method: Y = (2 + x) / (2 - 3x) ...
|
| Calculus | 4/24/2007 |
Q: I have tried the following equation, but I dont feel I did it completely correct, could you give it ...
A: I would first factor out y : y(x + 1) = 8 then y = 8 / (x + 1) or y = 8(x + 1)^ -1 so then dy/dx ...
|
| Calculus | 4/16/2007 |
Q: I just noticed that you had answered that question for Timothy on the 12th. That is the only ...
A: Here you go Rob. Hope its the right one. Hi Timothy, Here, you have to make use of the Chain Rule ...
|
| Calculus | 4/16/2007 |
Q: this is for the same question as I just asked you. I noticed that when I hit submit, the numbers ...
A: Okay, what you've got to do here is use the Product Rule. What complicates matters a little is that ...
|
| CALCULUS | 4/12/2007 |
Q: Find the derivative for the following functions: i. y=(2x^2-x)(3x^2+5)^8 ii.y=(t^2-6t/t^2+6t)^5
A: Here, you have to make use of the Chain Rule as well as the Product and Quotient Rules. i) For y = ...
|
| Calculus | 4/12/2007 |
Q: Given f(x)=x^3-(1/2)x^2+1. Find the value of x where dy/dx=4.
A: Okay, this should be pretty straightforward -- after the calculus part, we'll need to do some ...
|
| CALCULUS | 4/7/2007 |
Q: 1. Find the derivitive of f(x), if f(x)=320
A: This is an easy, quick one. The derivative of any constant is zero, so for f(x) = 320, f'(x) = 0 . ...
|
| CALCULUS | 3/29/2007 |
Q: Find dy/dx for 1. y=squarert/(5x) - squarert/(x/5) 2. y=3/x^2
A: 1. There are several ways to do this one, but here's one thats not too bad: y=sqrt(5x)-sqrt(x/5)= ...
|
| CALCULUS | 3/28/2007 |
Q: 1. For any function y=f(x),express dy/dx using limit notation.
A: I'm not exactly sure if my answer will be what you're looking for, but I hope it is. Basically, ...
|
| math calculus | 3/25/2007 |
Q: 1. a) Find the slope of the tangent to the curve y=4x^3-3x^2+1 at the point wher x=-1 b)Find the ...
A: Okay, for part a, the slope of the tangent line to a curve at any point is given by its derivative. ...
|
| CALCULUS-limits | 3/23/2007 |
Q: Let f(x)=x^2+6, x>=2 f(x)=2x-3, x<2 Determine lim f(x). x->2
A: Okay, since you have a piecewise function here(Or what I like to call a "split function"), to try to ...
|
| CALCULUS | 3/20/2007 |
Q: A rectangular storage unit has dimensions 1m by 2m by 3m. If each linear dimension is increased by ...
A: Okay, lets see here, the original box is 1 by 2 by 3, so that gives a volume of 1*2*3 = 6 m^3. ...
|
| CALCULUS | 3/19/2007 |
Q: Solve the following inequalities: i. x(x-4)<_ 0 ii) x^3-4x^2+x+6<_ 0 ***(<_0 =is less than or equal ...
A: I'm not exactly sure what resources you have available to use on these, so I'll try to do an ...
|
| Geometry | 3/19/2007 |
Q: I am really struggling with this chapter. Here are some questions in the chapter review that I can't ...
A: Okay, lets see what we can do with these. 1. Basically what you want to do here is draw any angle, ...
|
| CALCULUS | 3/18/2007 |
Q: Im having troubles with thisExpress roots to the nearest hundredth. 2m^2-m-7=0
A: Okay, this seems to be a straightforward use of the quadratic formula. Remember that if a quadratic ...
|
| Geometry | 3/5/2007 |
Q: If 5x degrees and (7x degrees - 12 degrees) are the measures for vertical angles formed by two ...
A: You're right! The angles are congruent, so that makes their degree measures equal. I hope I ...
|
| Geometry | 2/26/2007 |
Q: If planes a and B are distinct planes having points X,Y, and Z in common, what conclusion can you ...
A: I hope we can continue to help you. I'm assuming that points X,Y and Z are distinct points. If A ...
|
| Geometry | 2/21/2007 |
Q: How do I sketch two angles that have a common vertex and a common side, but are not adjacent angles?
A: This is not as difficult as it may seem. Let's see if I can describe it to you: If you sketch a ...
|
| math | 1/8/2007 |
Q: How many 4-inch by 8-inch bricks are needed to build a walk 6 feet wide and 24 feet long? A ...
A: 1. Okay, so each brick covers 4 * 8 = 32 square inches. The walkway is 6 feet (72 inches) by 24 ...
|
| calculus question | 12/29/2006 |
Q: You helped me quite a bit last time! Thanks again. Here is anotherFind the derivative : y= ...
A: Okay, for these two, let's see what we can do. 1. y = 2 sin x * cos x y' = ? I'll do this two ...
|
| calculus question | 12/28/2006 |
Q: please help me prove this identity: tanx + cotx = secxcscx
A: When you have identities like this to prove, where there are no "squares" of functions involved, one ...
|
| trick questions | 12/23/2006 |
Q: do u know the answer to this trick question. I think it has something to do with roman numerals. ...
A: I can't see wht this might have to do with roman numerals; if you change all the numbers to them, ...
|
| Algebra - Interrest Rate Questions | 11/26/2006 |
Q: Hey there. I have a two part algebra question for you - I am stumped. Part One: If $3600 is ...
A: Yes, you are indeed correct on Part One. The formula goes: A = P(1 + r/n)^nt where P= principal, ...
|
| about graphs | 11/14/2006 |
Q: sir,i want to know more about continiuty and differentiablity,i notised that a continious graph is ...
A: This is a question on which we could spend a GREAT DEAL of time, but I will try to go over the ...
|
| Math help | 11/6/2006 |
Q: I'm nearly finished with polynomials :) The question I'm having difficulty with right now states: ...
A: This is really not difficult, just be careful as you enter the polynomial; it's easy to make a ...
|
| Area question | 11/2/2006 |
Q: Two drivers leave Omaha at the same time, one driving east and the other west. The average speed of ...
A: In all questions like this one, the basic equation you want to remember is Distance = Rate * Time. ...
|
| Graphing Functions | 10/29/2006 |
Q: If the function y = (square root of (16 - x squared)) was transformed by a factor of y=2f(x-3)plus ...
A: I think you've got this except for one small item. Taking it by steps, changing y= f(x) to y= ...
|
| Math help | 10/27/2006 |
Q: Ok, I got the graph for the second one fine, but had some trouble entering the correct points (on ...
A: OK, thanks for the clarification on the first equation. We can go through this now. First, ...
|
| Math help | 10/25/2006 |
Q: I’ve got two other questions where a graphing calculator might come in handy. However they’re above ...
A: Glad the first few polynomials went well. I would be able to help with the first question here if ...
|
| a few math questions? | 10/25/2006 |
Q: How are you Steve. What qualifications do you have? I was wondering if you can speare some time and ...
A: Well, as far as my qualifications go, you can look at my profile at allexperts. Basically, I taught ...
|
| Math help | 10/23/2006 |
Q: I saw that you helped someone with polynomials and I was wondering if you could help me too. I'm ...
A: Hey, this is the first graphing calculator question I've gotten in over a year! Thanks! OK, before ...
|
| probability | 10/17/2006 |
Q: A box contains four red marbles, seven white marbles, and five blue marbles. If two marbles are ...
A: Okay, this is not going to be too hard, believe me. First, remember that probability of an event ...
|
| Roman numerals | 10/8/2006 |
Q: Since my last email I did more research and found out that if spelled in Latin and no Roman ...
A: That's pretty interesting, what you found out about the Latin use. I'm sorry, but I really can't ...
|
| Roman numerals | 10/3/2006 |
Q: I saw the number 1903 spelled in Roman numerals as MDCCCCIII. I know from learning Roman numerals in ...
A: Well! This is the first time I've ever heard of something like this. I understand what you mean by ...
|
| algebra story problem | 8/17/2006 |
Q: Mr. Holleran, Sorry to bother you again but I just got a math packet for algebra 2 and I am a ...
A: No bother at all. You're doing pretty well if you're only a ninth grader and are working on Algebra ...
|
| algebra story problem | 8/14/2006 |
Q: One outlet of a grain elevator will empty the elevator in 3 hours. A second outlet will empty the ...
A: Okay Caiti, All of these work problems are set up basically the same way. We have to figure out ...
|
| Volume | 8/14/2006 |
Q: The region between the curve y=3-sin(ax) (where a>0) and the interval between 0 and pi/(6a) is ...
A: Well, this one is going to be a doozy! I'm not even sure how to do all the notation here, but I'll ...
|
| algebra story problem | 8/10/2006 |
Q: The rate of the current in the Susanna River is 4km/h. If a canoeist can paddle 5km downstream in ...
A: These problems always have to do with the basic formula: Distance = Rate * Time or ...
|
| using compound interest | 8/8/2006 |
Q: I would like to know what formulas to use to solve this problem. A person can spend $1000 per month ...
A: I'm not really sure if I'm going to be of much help here, Lou, because I'm a little confused about ...
|
| number related word problems | 8/6/2006 |
Q: the sum of the digits of a two-digit number is nine. if the digits are reversed, the new number is ...
A: You don't indicate what math level you're at, so I'm assuming its either Algebra 1 or 2. In any ...
|
| elementary algebra | 7/31/2006 |
Q: What is the distance formula when given two points, such as (3,1) and (5,-6)?
A: Okay, the formula you want is written several different ways. I'm going to use the abbreviation ...
|
| grade level | 7/13/2006 |
Q: What grade level asks you the most questions and about what subject?
A: This is not an easy question to answer. I have taught classes ranging from the most basic high ...
|
| Weighted average | 7/11/2006 |
Q: Three people earn $8 per hour, six earn $9 per hour and one earns $12 per hour. What is the ...
A: To get the weighted hourly wage here, you have to take in to account the number of people in each ...
|
| Finding Rules | 6/19/2006 |
Q: An unknown (secret #) is assigned to each vertex of a triangle. On each side of the triangle is ...
A: Well, I've been playing around with this for about a day or so, and I haven't been able to come up ...
|
| Calculus | 5/25/2006 |
Q: For each of the following find the limit if it exist a) f(x)= x-2, x< -2 3x+2, x> -2 ...
A: Remember that to evaluate limits, just substitute the x-value into the function. A) I assume that ...
|
| Algebra | 5/25/2006 |
Q: You helped me so much several days ago. Thanks again. I actualy have 3 problems to solve. I think ...
A: 1. Yes, this is correct. Its good to see that you checked your answer to see if it worked out--you ...
|
| algebra or geometry | 5/23/2006 |
Q: What is the area of an equilateral triangle with 1/3 of its height=4 A. 96 times the square root ...
A: Since 1/3 of the height is 4, then the height is 12. If you draw the triangle, and drop in the ...
|
| algebra | 5/23/2006 |
Q: What is the equation of the line through (4,2) that is perpendicular to the line y=4x + 6?
A: Okay, let's take this a step at a time: To write the equation of a line, you need to know two ...
|
| Calculus | 5/18/2006 |
Q: Using First Principles, find the slope of the tangent to each curve at the given point. a) f(x) = ...
A: I have no idea what you mean by "First Principles". I've never heard the term--it may be something ...
|
| Calculus | 5/17/2006 |
Q: 1. Explain why the limit of f(x)=10 exists for all values of x. 2 Determine the real values of ...
A: It's good to get a Calculus question for a change! 1. Okay, the answer to this relies on the fact ...
|
| Roman Numerals | 5/6/2006 |
Q: If the year is now MMMDXCVIII. What year did the battle begin [answer in hindu-arabic numerals and ...
A: Well, I haven't done any work in roman numerals in a while, but I think I remember enough to give ...
|
| Motion Problem... | 5/5/2006 |
Q: I only have a few left...im trying to do the review questions...my exam is on friday! thanks for all ...
A: 1. Again, you'll have to try to visualize the sketch of the situation. Put the westbound power ...
|
| Helping my son with math | 3/25/2006 |
Q: My son is in Grade 9. He is generally a good student but he is intimidated by Math. I enjoy ...
A: Sorry it took me this long to respond, I was traveling this weekend. Your concern is not an easy ...
|
| math | 2/14/2006 |
Q: what is 1/2 divided by 4? I am coming up with 2 answers and cannot decide which is right. This is ...
A: Ok, to divide a fraction by another number, you want to use the rule that division is the same as ...
|
| Inequality proving | 1/29/2006 |
Q: Prove the following if a,b,c,d >0: 1a) a/b + b/c + c/a >or= 3 b) a/b + b/c + c/d + d/a >or= 4 thank ...
A: I'm going to need some information before I can answer this definitively: In the opening of your ...
|
| perspective on relationships | 9/27/2005 |
Q: Mr.Holleran, I am currently seeking my teaching degree and have to interview a teacher that has ...
A: It's good to be able to talk to someone who really wants to become a teacher. I just retired from ...
|
| basic algebra | 5/4/2005 |
Q: 3T+4=-59+10T..... what is T?
A: OK, I think this is going to be no problem. Remember in algebra that an equation means that the two ...
|
| Algebra - compounding interest | 4/25/2005 |
Q: I have a math problem that I just can't figure out. We have a formula for this, but when I plug the ...
A: The formula you're looking for is the compound interest formula : A = B ( 1 + ...
|
| algebra | 4/11/2005 |
Q: solve for x. x^2+5=2
A: In a quadratic (second degree) equation like this, where there is no linear term (x), you want to ...
|
| problems with algebra functions | 3/16/2005 |
Q: i am taking college algebra and i am totally confused when it comes to functions. are there any good ...
A: Well, if its any consolation, you are not alone in having a little difficulty understanding ...
|
| maths/formula | 3/5/2005 |
Q: i have been asked to stock take due to our stores manager being absent,my problem is how to cube the ...
A: Sorry for the late answer, but we just completed 3 days of state-mandated testing here, and my ...
|
| career | 1/14/2005 |
Q: Good morning my name is Mitch I'm a middle school student in Michigan. We have researched careers in ...
A: Sorry it took me a couple days to reply, but you caught me at the start of a long weekend here--I ...
|
| null sets | 1/12/2005 |
Q: I need examples of null sets. I am not grabbing the concept.
A: There are lots of ways of describing null (also called empty) sets. They are simply sets that ...
|
| Word question | 9/28/2004 |
Q: Alex and Belly are playing on a traveling walkway which is a conveyor belt to carry passengers from ...
A: Wow! Where did this one come from? I hope I understood it correctly, and I think I have a solution, ...
|
| A student claims that a succession... | 5/13/2004 |
Q: A student claims that a succession of two reflections in two perpendicular lines can always be ...
A: To see that this is so, consider the two points A(2,3) and B(5,8). Let's reflect this segment AB ...
|
| Steve, thank you for letting... | 4/22/2004 |
Q: Steve, thank you for letting me know you could not help with the last question. Also could you ...
A: Glad to see you came back. I'm reading this problem as a system of equations, I hope that's ...
|
| A girl wants to calculate... | 4/4/2004 |
Q: A girl wants to calculate the height of her family's teepee. She is 112cm tall and she finds that ...
A: You have an ability to hide 5 questions in 1! 1. You have similar triangles here, so set up a ...
|
| A rectangle has been defined... | 3/29/2004 |
Q: A rectangle has been defined as a parallelogram in which one of the angles is a right angle. ...
A: Let's go down the line here: 1. By the definition, a rectangle has one right angle. Since it ...
|
| about prove in math | 3/27/2004 |
Q: COULD YOU PLEASE TELL US WHICH SOLUTION IS MORE PREFERABLE TO THE FOLLOWING Q1) PROVE OR DISPROVE ...
A: I hope I understand what you are asking. I've not worked with number theory proofs in a long time. ...
|
| polynomial | 3/27/2004 |
Q: i am math teacher from jordan i want to ask you about polynomial thank you for your answer about ...
A: I am honored to meet (even if it is electronically) a fellow math teacher from Jordan. It is one of ...
|
| What is the number of vertices... | 3/26/2004 |
Q: What is the number of vertices in an octagonal prism? If planes a and b are distinct planes having ...
A: I have to admit I'm not perfectly sure what the definition of an "octagonal prism" is, but if I ...
|
| The mean average for Joyce's... | 3/23/2004 |
Q: The mean average for Joyce's 11 test scores was 62.5. How much will a score of 100 change her mean ...
A: Mary: Taking the questions in order, on the first one, if the mean for the first 11 tests is ...
|
| The weights in pounds of six... | 3/23/2004 |
Q: The weights in pounds of six elementary students are 80,92,71, 63,76,and 83. Find the following: ...
A: Well, you are correct on three of the four items. Yes, the mean is 77.5, there is no mode, and the ...
|
| Maths | 3/16/2004 |
Q: Holleran I have a problem with maths. no matter how hard i try i can't seem to remember formula's. ...
A: First of all, you're not alone--a lot of people seem to think they cannot succeed in math. But with ...
|
| Calculas | 3/15/2004 |
Q: I was doing some math homework and I can not find the integral of (sinx)squared I know that sinx ...
A: It's not surprising that you couldn't find an easy way to integrate (sin x)^2. The trig functions ...
|
| Permutations in a circle | 2/21/2004 |
Q: I'm afraid I have a very important national exam tomorrow morning and I would highly value a prompt ...
A: I just got your question this morning; I hope my response is not too late to help you. Counting ...
|
| Pre-algebra | 2/19/2004 |
Q: The ratio of girls to boys in the Art Club is 4 to 6. What percent of students in the Art Club are ...
A: Ratio and percent problems are not really that difficult. Let's see what we can do with this one. ...
|
| algebra word problem | 1/18/2004 |
Q: Please write the correct equation: the sum of two numbers is 23. if 2/3 (two thirds) of the larger ...
A: I'm not sure if you just want the correct equation, or if you also want to solve it. So, let's do ...
|
| Cabinet Math? | 12/25/2003 |
Q: Steve, I build cabinets (allexperts/home&garden/cabinets volunteer...Hot Dawg)Building a 7' tall ...
A: Let me start with your secondTo get a 22.5 degree angle, you would need to go up 24 inches and over ...
|
| algebra question | 10/22/2003 |
Q: I am a college student at a 2 year associate degree college and this is a question my algebra ...
A: Let's try this one algebraically: Circumference of a Circle = 2*pi*r Area of a Circle = pi*r^2 ...
|
| Math Curriculum | 5/14/2003 |
Q: I will possibly be tutoring a 14-year-old this summer (she will be taking freshman Algebra this ...
A: If the student will be taking Algebra I this coming fall, there are several approaches you could ...
|
| linear motion | 4/25/2003 |
Q: a man runs at a speed of 4 m/s to reach a stationary bus. when he is 6.0 m behind the bus's door(at ...
A: I just got back from visiting my family yesterday, so I hope this reply isn't too late! You ...
|
