| Subject | Date Asked | Expert |
|
| Please proof read my speech | 9/18/2009 | Dan Riordan |
Q: My Name is Thato Ngwenya, I am here representing MTN Corporate Business Unit. I would like to ...
A: I think it's fine, but I would suggest two minor changes. First, instead of "great job that is done ...
|
| Quadratic Formula | 7/14/2009 | Dan Riordan |
Q: It has been a LONG time since I have done this type of math. Can you refresh me on this simple ...
A: I don't know how to use the quadratic formula to find a maximum; it's been a long time for me, too. ...
|
| exponents in number sentences | 3/16/2009 | Dan Riordan |
Q: This is not a homework question but a serious disagreement among teachers and two popular software ...
A: Sorry, it looked like a homework problem. Now I could plead "not my area of expertise" since I'm ...
|
| Grammar | 3/11/2009 | Dan Riordan |
Q: The college and career services have invested a great amount of time in this project. In the above ...
A: The verb should be "have." Two subjects can be treated like a plural subject. Whenever I come ...
|
| finding domains of a function | 12/18/2008 | Steve Holleran |
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 | Steve Holleran |
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 ...
|
| graduating early | 12/10/2008 | Dan Riordan |
Q: my name is Linsi Clain. I am 14 and currently attending a charter school. Last year I was attending ...
A: Not my area of expertise, but I'll take a swing at it. First piece of advice: Don't give your name ...
|
| Am I really poor and how will I pay for college? | 11/23/2008 | Dan Riordan |
Q: I am 13 and I want to go to medical school for psychiatry when I get older.And I know that you have ...
A: I'm no expert on this. You should talk to a guidance counselor at school. Whether you are poor, ...
|
| factoring | 10/31/2008 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 ...
|
| late night studies | 8/31/2008 | Dan Riordan |
Q: i am unable to study in the late nights.i get asleep as soon as i start studing.iam unable to study ...
A: If your body needs the sleep, it needs the sleep. You can try different ways of keeping yourself ...
|
| Compounded Interest | 7/28/2008 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 ...
|
| Degree question | 10/4/2007 | Dan Riordan |
Q: I wasn't sure who to ask...I want to be a home economics teacher/ health teacher. My question is: ...
A: This is outside my expertise, but I will tell you what I've seen here in NJ. First the bad news: ...
|
| Minutes between class periods | 9/22/2007 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 | Steve Holleran |
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 ...
|
