| Subject | Date Asked | Expert |
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| cube | 11/20/2009 | Lynn Houston |
Q: how to find cube root of 5000 withou calculator....that is manually
A: The only way I know is with a lot of pencil work. You just whittle it down. 10^3 is 1000 so you ...
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| algebra | 11/20/2009 | Lynn Houston |
Q: how do I solve this question 5-1 1/2X=-9
A: Going on the assumption that the problem is accurate as I applied the parentheses 5-(1 1/2)X=-9 ...
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| completing the square in quadratic equations,cubic equations,graphs | 11/20/2009 | Josh |
Q: any help you can give me would be greatly appreciated. completing the square in quadratic ...
A: Edited: - Q2 | Relationship between the a,b,c,d coefficients of a cubic polynomial and its roots ...
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| Percentages & Fractions | 11/19/2009 | Josh |
Q: Can $120/5% and $120/2% be tweaked or manipulated in some manner so that the amounts of $2000.00, ...
A: I think what we looked at last time is not unrelated to the question that you now pose. Recapping ...
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| cube | 11/19/2009 | Josh |
Q: how to find cube root of 5000? plz explain with complete steps
A: Let the cube root of 5000 be x. What this means is that x*x*x = 5000. This is not a pleasant number ...
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| Divisibility Rules | 11/19/2009 | Patrick J. O'Neill |
Q: What is 301:7 in simplest form? And how do you know if a number is divisible by 7?
A: 301:7 in simplest form is 43:1 or simply 43. (divide 301/7) I'm going to save myself the typing ...
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| Trouble | 11/18/2009 | Patrick J. O'Neill |
Q: I'm having trouble with dividing and I need help. Like for example 657 divided by 9.
A: Honestly I didn't know how to do long division until after I already passed algebra 2, I didn't ...
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| Percents | 11/17/2009 | Patrick J. O'Neill |
Q: A digital camera costing $150 was marked up 60% on the cost. For a July 4 sale, it was reduced 25%. ...
A: The camera started at 150 dollars, so start by adding the 60% to that. 150 times .60 is 90, and ...
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| partial fractions | 11/17/2009 | Josh |
Q: when equating coefficients, i'm not sure where to start with this 1) x^3+1 ---- = Ax +B ...
A: For Q1, (x^3+1)/(x^2+1) = Ax + B + C/x + D/(x^2+1), write LHS numerator as (x^3+x-x+1) = x(x^2+1) ...
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| i need help! | 11/16/2009 | Lynn Houston |
Q: i need help with writing 2 equivalent ratios for 7:4 and writing 36:45 and 22:25 in simplest form
A: to write two equivalent ratios, just multiply 7 and 4 by any two numbers. 2 and 3 are easiest, so ...
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| Standard form of a Circle | 11/13/2009 | Patrick J. O'Neill |
Q: How do I write the standard form of a circle with the center (0,0) r=8? Thank you for your help.
A: The equation to use is: (x − h)^2 + (y − k )^2 = r^2 radius r, center (h,k) h=0, k=0, ...
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| Algebra | 11/13/2009 | Patrick J. O'Neill |
Q: I need help writing equations in standard form using integer coefficients. My teacher did not ...
A: An equation that would require rewriting using integer coefficients would be: y = -3/4x - 1/2 You ...
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| math | 11/12/2009 | Lynn Houston |
Q: how much more is 2 than .2 ANSWER: 2 - .2 = 1.8 ---------- FOLLOW-UP ----------I don't think I ...
A: Oh, that I understand. 2mg instead of .2mg. That's a 900% increase. As an aside, unfortunately, ...
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| area measurement | 11/11/2009 | Josh |
Q: how doi calculate the area in square meters of a triangle and a circle
A: The area of a circle is given by pi*r^2, where pi has an approximate value of 3.141593 and r^2=r*r. ...
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| Percentages & Fractions | 11/11/2009 | Josh |
Q: Can $120/5% and $120/2% be tweaked or manipulated in some manner so that the amounts of $2000.00, ...
A: I don't quite understand what you are asking. It confuses me when you say "the amounts" of 1000 (or ...
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| Multiplying Fractions! | 11/9/2009 | Lynn Houston |
Q: I love math, and I sail through the questions my teacher gives me, but now I'm stuck with my enemy, ...
A: No, actually, that's the good thing about multiplying fractions, you don't have to worry about ...
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| Algebra | 11/9/2009 | Josh |
Q: Josh, I am taking algebra and I just don't get it here is my question 1/x+5 + 3/x+4 = -1/x2 +9x+20
A: I guess the main difficulty we have concerns with the left hand side (LHS) of the equation. Because ...
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| Percentages & Fractions | 11/9/2009 | Josh |
Q: Can $120/5% and $120/2% be tweaked or manipulated in some manner so that the amounts of $2000.00, ...
A: Once again, I will make the point that it is best to leave out the "%" symbol and "$" sign in any ...
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| Algebra II.....please help me its urgent!!! | 11/8/2009 | Lynn Houston |
Q: 12. Simplify: 2a^2 = 7a+4 a. a = 0.5 or -4 b. a = -0.5 or 4 c. a = 0.5 or 4 ...
A: 12. Simplify: 2a^2 = 7a+4 b. a = -0.5 or 4 13. Simplify: (n-1)^2 = 1 d. n = 0 or 2 14. ...
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| Logical Mathematical | 11/7/2009 | Josh |
Q: if I study hard or I get rich then get A's. There P= study hard Q= I get A's R= I get ...
A: In binary representation, let 1 be "true", 0 be "false". The truth table for Q = P or R is given by ...
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| Subitution Math Problem | 11/6/2009 | Lynn Houston |
Q: What are the steps to this substitution y=9x-28 8x-3y=27
A: You take the value of y, which is 9x-28 and you fill that into the second equation for y. 8x - ...
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| 5th grade Applications Problem | 11/5/2009 | Lynn Houston |
Q: Please help me solve this multiquestion problem Table: 2003-2004 Season Player Averages ...
A: PaRKER SCORED 14 PTS per game, so pts for the season would be 102 * 14 = 1428 The team scored 45 ...
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| Fractions | 11/5/2009 | Josh |
Q: 2/3 of Mary’s age equals Sarah’s age and 3/4 of Ruth’s age equals Sarah’s age. If the total ages ...
A: Kenneth, The usual way to navigate such a problem is by using linear algebra. This will tell us if ...
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| Elimination and Substitution | 11/5/2009 | Lynn Houston |
Q: How to solve an equation that has 3 different variables 2a+c=-10 b-c=-15 a-2b+c=-5
A: Take the equations with only 2 variable and solve them for a and b, then fill those values into the ...
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| Fraction Question | 11/5/2009 | Josh |
Q: By looking at the denominator and the numerator how can you tell if the fraction is greater or less ...
A: There are several ways to answer this question. The best answer for you would depend on your ...
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| help | 11/5/2009 | Lynn Houston |
Q: if tony climbs 3 1/2 meters per minute. how many meters did he climb in 2 1/4 minutes ? the answer ...
A: 3 1/2 = 3.5 (1 divided by 2 = .5) and 2 1/4 = 2.25 (1 divided by 4 = .25) so, to find out how many ...
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| math crap | 11/4/2009 | Lynn Houston |
Q: i dont understand my teacher goes way to fast. 2/3V=14 solve V. What do i do?!?!?!?!?!?!
A: When you're solving for a variable, you have to isolate the variable and in order to do that, you ...
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| simultaneous linear equations | 11/4/2009 | Josh |
Q: y = 2x+3 y = 5x-3 how do i solve this to get x=2 and y=7 and y = 3x -1 ...
A: Given two equations with two unknowns, we can use elimination and back-substitution to find the ...
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| completing the square in quadratic equations | 11/4/2009 | Josh |
Q: out of 50 questions,these three i had a problem with. Can you help me with solving for x,in steps ...
A: "Completing the square" may not be the easiest way of finding the answer to these quadratic ...
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| Math | 11/3/2009 | Patrick J. O'Neill |
Q: My daughter is in third grade... I just learned what regrouping means. Never did this when I was ...
A: I found this in the question pool. Um, I'm not sure about this question, I slightly remember using ...
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| question | 11/3/2009 | Josh |
Q: How can i solve mathematical problems...involving fractions , ratios and also trigonometric problems ...
A: Since you did not mention your school level, it is rather difficult for me to address your specific ...
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| urgent math | 11/3/2009 | Josh |
Q: Hey there I have a test tomorrow nigh for Calc and I just can't seem to get the answers for these ...
A: It is always stressful having so many unanswered questions the day before an exam. Let's see if we ...
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| Applications Glaciers and Icebergs | 10/29/2009 | Patrick J. O'Neill |
Q: I need some help understanding applications I dont really understand it please help A chunk from a ...
A: you are missing information in your question. The question is impossible to answer with the ...
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| natural log question | 10/28/2009 | Josh |
Q: My equation is reduced to 4ln(600/P)=ln(75,000/P). I need to isolate the P but the 4 in the ...
A: For any constant "a" and positive real-valued number "x", a*log(x) = log(x^a). e.g., you can verify ...
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| Decimal to Fraction | 10/27/2009 | Patrick J. O'Neill |
Q: How do I change 1.444444 (repeating) into a fraction? thank you!!!!
A: I found this question in the question pool. You need to look at each section of the number as a ...
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| Weighted Scores | 10/27/2009 | Patrick J. O'Neill |
Q: I'm struggling with a basic math problem, to do with weighted percentages and forecasting. I hold ...
A: I found this question in the question pool. There are two different ways to solve this problem. ...
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| Math | 10/27/2009 | Patrick J. O'Neill |
Q: 12 examiners take 24 days to check 1000 papers. How many days will 16 examiners take to check 8000 ...
A: I found this question in the question pool. First, start by finding the number of papers each ...
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| 8th grade pre algebra multi-step equations | 10/27/2009 | Lynn Houston |
Q: I really don't under stand multi-step equations can you help? MY problems are 1.)-15-6c+3b-6+9+2a ...
A: All they want is for you to combine all like terms. That means add or subtract all a's, b's, c's, ...
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| Quadratic functions | 10/27/2009 | Patrick J. O'Neill |
Q: how do you find a quadratic function from a table of values ??
A: I found this question in the question pool. The quadratic function in standard form is; ax^2 + ...
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| solveing linear equations | 10/26/2009 | Lynn Houston |
Q: can you please show me in steps, as each time i do these, i get a different answer :-( 1. 5+ ...
A: The easiest way to handle these is to start by getting rid of the fractions. To do that, multiply ...
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