| Subject | Date Asked |
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| triangle | 9/26/2009 |
Q: How do I get the length of the third leg of a triangle when the two ninety degree legs are 10 inches ...
A: Recall the Pythagoras Theorem for a right angle triangle A2 + B2 = C2 Where A and B are the legs ...
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| AREA | 9/25/2009 |
Q: A rectangular plot of ground having dimensions 40 feet by 36 feet is surrounded by a walk of ...
A: I pictured the problem and you can see the image which will help you understand better. As you can ...
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| graphing linear equations | 9/24/2009 |
Q: i need to know how i can graph these two equations: x+2y=10 -x+4y=8
A: First find the X intercept and Y intercept X + 2Y = 10 2Y = 10 – X Y = 5 – X/2 To find the X ...
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| algebra | 9/24/2009 |
Q: Express 2.3 as a fraction. The 3 has a bar above it. I understand what that is for, but I still ...
A: I am more than happy to help you. This is a simple but very important problem. 2.3 repeating is; ...
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| Quintuple Simultaneous Equation | 9/23/2009 |
Q: I have progressed from triple to quintuple and would appreciate the logic of working out to enable ...
A: I’m very astonished you are working hard and progressing. I want you to exude your confidence and ...
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| transforming equation:multp and division | 9/22/2009 |
Q: -1/4x=2 1/4
A: The fraction in the right side is a mixed fraction, change it to improper fraction by multiplying ...
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| algebra | 9/21/2009 |
Q: the sum of three numbers is 123. the second number is 9 less than two times the first number. the ...
A: Let the three numbers be A, B and C. A + B + C = 123 B = 2A – 9 C = 3A + 6 Now try to ...
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| problem solving | 9/21/2009 |
Q: The kitchen floor of your home is 12’6” in width and 10’4” in length. You have decided to put in a ...
A: Problem #1 We are required to find the area of the floor. First let’s put the length and the width ...
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| Graphing Equations | 9/20/2009 |
Q: If you cannot answer this by tomorrow morning, then please disregard, because I need help with this ...
A: I apologize in advance if I can’t make it in time but you have to know how to solve it. Problem #1 ...
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| Algebra 2. Linear Equations | 9/20/2009 |
Q: you plan to invest $12000 in 2 funds paying 4 1/2% and 5% simple interest. Your goal is to obtain a ...
A: This is a simple interest problem. I reckon you know the formula of the simple interest. I = ...
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| d=s/t | 9/20/2009 |
Q: How do I solve this if I don't know the time/number of hours the flights took? A jet flew from ...
A: Let’s assume the initial speed was X, meaning the returning speed is X – 200 km/hr. And T be the ...
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| Linear equation problem | 9/20/2009 |
Q: Cory alone can finish typing a manuscript in 10 days, Imelda alone can do it in 15 days. Cory, ...
A: To solve this problem, Juan, first find how much work is done by each individual in one day. And ...
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| Function notation | 9/19/2009 |
Q: There are a couple of questions from my math homework that I don't understand. Could you please ...
A: Good to hear from you again Kaitlyn Problem #3 D= {x1x≥0, xЄR} This is a typo, the ...
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| Inverse proportionality | 9/18/2009 |
Q: If y is inversely proportional to x^2, and if y=12 when x=2, find the formula for y in terms of x. ...
A: If y and x2 are related inversely, then Y*X2 = K (where K is any constant) Y = K/X2 Now you have ...
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| Mixture Problem - EMERGENCY! | 9/18/2009 |
Q: A coin purse contais a mixture of 32 coins in dimes and quarters. The coins have a total value of ...
A: A dime is worth 10 cents and a quarter is one fourth of a dollar. So the purse contains 32 coins, ...
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| Algebra (complex zeros) | 9/18/2009 |
Q: Ok, how do you find complex zeros of a function (quartic) there are no rational zeros.. The ...
A: The question is about the solution of the quadratic equation. You can use this formula to find the ...
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| Function notation | 9/17/2009 |
Q: There are a couple of questions from my math homework that I don't understand. Could you please ...
A: Kaitlyn You see, the function represented by √, is as you said the square root function. And ...
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| 3 variables | 9/17/2009 |
Q: trying to solve a triple equation with 3 variables; 3i+2j=9 j-4k=8 5i+3k=9 not sure whether to add ...
A: Good to hear from you again. I see that you’re working well. What I meant was (5/2)*(2j-3k) + 3k = ...
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| perecentage | 9/17/2009 |
Q: A water pipe can fill a 250 litre tank in 2 hours 30 minutes.In how much time will it fill 9 / 10 of ...
A: This is an easy cross-multiplication problem. Observe that the time required to fill and the ...
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| Algebra 2 | 9/17/2009 |
Q: I have a question regarding inverse word problem: If w varies inversely as the sum of six and three ...
A: Good to hear from you. If two physical or mathematical quantities are inversely related to each ...
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| hepl with algebra | 9/17/2009 |
Q: 2. Perform the indicated operation and simplify completely 5x+5/5x+9 + 5x+13/5x+9 ...
A: Problem #2 You see that the denominators are the same, so you just add the numerators and put with ...
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| 3 variables | 9/16/2009 |
Q: trying to solve a triple equation with 3 variables; 3i+2j=9 j-4k=8 5i+3k=9 not sure whether to add ...
A: First add the first and the third equations, because ‘i’ is common. 3i + 2j = 9 5i + 3k = 9 This ...
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| algebra | 9/16/2009 |
Q: solve this through substitution: 2m+n=2 3n-2n =3
A: To solve this problem, write one of the variables in terms of the other and substitute in the second ...
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| Algebra 2 | 9/15/2009 |
Q: You decide to buy a 60-inch plasma-screen TV. To do so, you borrow $4,500 from the electronics store ...
A: This is an interest problem. To do it you have to know the formula I = P * R * T Where, I is the ...
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| algebra question help | 9/15/2009 |
Q: 1. A square window has an area of 96 square inches. what is the length of each side of the window? ...
A: You know well that the area of any square is the square of the length of one side. Because all the ...
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| functions | 9/15/2009 |
Q: how do i tell if a problem is a function or not a function. also how do if ind the domian and range ...
A: To tell whether a problem contains a function, it must contain an independent as well as dependent ...
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| Math | 9/13/2009 |
Q: Solve by the substitution method 9x+5y=3 x=45-8y
A: These equations are called simultaneous equations, because the solution you find satisfies both ...
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| Factoring | 9/13/2009 |
Q: I have some math questions that I attempted to do but I am pretty sure I did wrong for homework. ...
A: Sure I can help you with number five. 24a²-30a+9 Kaitlyn, before I get on with the problem I have ...
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| literal equations | 9/13/2009 |
Q: what is the answer to this equation x + y = z, for y
A: The process of finding the formula of one variable in terms of other variables in a particular ...
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| maths | 9/13/2009 |
Q: i'm sorry but i just didn't get the way you work out the sequence i gave you. Is there any simper ...
A: Natalie Good you asked. I will try to make it clear now. The rule governing this sequence is ...
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| Factoring | 9/12/2009 |
Q: I have some math questions that I attempted to do but I am pretty sure I did wrong for homework. ...
A: Factoring out polynomials is very important; it helps you to find their solutions. Problem #1 5t2 + ...
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| unitary method | 9/12/2009 |
Q: If 21 cows eat that much as 15 buffaloes,how many cows will eat that much as 105 buffaloes?
A: To solve the above problem, just find out how many cows eat as much as one Buffalo. If 21 cows eat ...
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| maths | 9/11/2009 |
Q: what is and how do you work out the rule for the sequence of: 6,18,38,66,102,146 thankyou.
A: Finding out the rule for any sequence doesn’t require any advanced mathematical skill, Nati. You ...
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| alegbra | 9/10/2009 |
Q: I have to find the average speed and the question is 120 miles in 3 hour how would i do this
A: To do this problem, you just have to know that average speed is the total distance traveled divided ...
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| alegebra | 9/10/2009 |
Q: what is the slope of the graph of f(x)= 1.5x-2? what are the intercepts of the graph?
A: I believe you know that the formula of any linear equation or graph. Y = mx + b, where m is the ...
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| I need the answers to these questions | 9/10/2009 |
Q: 1) 7-2n=n-14 2) 6t=(t+4)-t 3) 3(n-1)+5n+3-2n 4) 8(2f-3)= d(4f-8) 5) 4(b-1)=-4+4b 6) 2/3a-3/4=3/4a 4) ...
A: These are all equations with one variable except #4, which is composed of two variables d and f. Did ...
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| numbers | 9/6/2009 |
Q: what least number must be added to 11943 to get a number exactly divisible by 29?
A: You can simply find the least number by dividing the number by 29 and find the remainder and compare ...
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| xy terms raise to fraction exponents | 9/2/2009 |
Q: I need to simplfy the following expression (( -27x^12/y^-24)^(2/3))using the parenthesis first I ...
A: (( -27x^12/y^-24)^(2/3)) It can be written as follows (-27x12/y-24 )(2/3) (-27x12y24)(2/3) ...
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