| Subject | Date Asked |
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| turning problems from point slope form to slope intercept | 12/4/2008 |
Q: a line passes through (1,-5) and (-3,7). write the equation in point slope form then rewrite in ...
A: slope is y2-y1/x2-x1 so the slope of the line through the two coordinates is 7-(-5)/-3-1 = -4. ...
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| math | 12/3/2008 |
Q: what is f(-3) if f(x)=4xsquared + 1? what is the value of y when x=4 if y= 5x+2? what is f(-3) if ...
A: what is f(-3) if f(x)=4xsquared + 1? 37 what is the value of y when x=4 if y= 5x+2? 22 what is ...
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| Slopes | 12/2/2008 |
Q: Hey i need to know the basic stuff about slopes. What the formula is. How to do it. Anything ...
A: Use this one and type slopes into the search box on the upper right. Apparently the search isn't ...
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| SUBTRACTION METHOD | 12/1/2008 |
Q: WHAT IS IT
A: Hard telling with so little information, but I'm guessing it's algebra and that it's eliminating one ...
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| Basic Algebra | 11/30/2008 |
Q: I've been given this1) Solve the below equation. 5-x/4 = 3 My teacher says to multiply everything ...
A: Treat it as an = sign and do the same thing (isolate the variable by "undoing" everything that has ...
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| Basic Algebra | 11/30/2008 |
Q: I've been given this1) Solve the below equation. 5-x/4 = 3 My teacher says to multiply everything ...
A: No. What you do to one side of the equality, you have to do to the other. So, when your teacher ...
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| hi | 11/30/2008 |
Q: wow you're pretty good :) 23. Write in scientific notation: 762.20 a.) 76.220 x 10^1 b.) ...
A: They're getting harder... what grade are you in? 23. Write in scientific notation: 762.20 c.) ...
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| hello /algebra2 | 11/29/2008 |
Q: 13. Simplify: [3 / 4]^-1 [-4 / 3]^-2 a.) 1 b.) 4 / 3 c.) 3 / 4 d.) -1 ...
A: 13. Simplify: [3 / 4]^-1 [-4 / 3]^-2 c.) 3 / 4 14. Write without using fractions: x^2 / yz^4 ...
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| help! algebra2 | 11/27/2008 |
Q: 31. Solve the inequality: t^3 < 9t^2 32. Solve the inequality: 4x(x + 1) ≥ 3 33. Factor ...
A: 31. Solve the inequality: t^3 < 9t^2 t<9 32. Solve the inequality: 4x(x + 1) ≥ 3 -3/2 > x > ...
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| hello /algebra2 | 11/26/2008 |
Q: 1. Factor the polynomial: 121x^2 - 1 a.) (11x - 1)(11 - 1) b.) (11x + 1)(11x - 1) c.) (11x + ...
A: 1. Factor the polynomial: 121x^2 - 1 b.) (11x + 1)(11x - 1) 2. Factor the polynomial: 16x^2 + ...
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| hello /algebra2 | 11/26/2008 |
Q: 21. Simplify: 2z^2 - 5)^2 a.) 4z^4 - 20z^2 + 25 b.) 4z^2 + 10z^2 - 25 c.) 4z^4 + 20z^2 - ...
A: 21. Simplify: (2z^2 - 5)^2 a.) 4z^4 - 20z^2 + 25 22. Simplify: x^2(x - 3)(x + 3) b.) x^4 ...
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| 4th Grade Question Regarding Line Plots | 11/25/2008 |
Q: We have been asked to make a line plot of Laura's test scores. The following has been provided. ...
A: Draw a horizontal line. Label the left end 80 and the right end 100. In the middle, between 80 and ...
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| math | 11/24/2008 |
Q: Which of the following is the correct graph for x=3 and x= -2?
A: Well, without seeing the graphs, it's kinda hard to tell. However, if it's one question and it's ...
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| qustion | 11/23/2008 |
Q: 1. ratio of the father and son is 5:3 the sum of their age is 40.what will be the ratio of their age ...
A: The ratio is 5:3, so that means 5x + 3x = 40, 8x = 40, x = 5. That means, currently, the father's ...
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| Tax | 11/22/2008 |
Q: I'm not sure on how to add the tax in exactly. Here's the problem: Ms. Munch bought a watch with ...
A: You add the tax in after you take of the discount. (129-(129(.2)))*1.06= $109.39 The above is the ...
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| linear euaqation word problems | 11/22/2008 |
Q: Robert is on a diet and can have 500 calories for lunch. A 3- ounce hamburger on whole wheat bread ...
A: (500 - 315 - 145)/10 = 4 Algebra is logic, so think about this logically. Although it doesn't say ...
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| math | 11/21/2008 |
Q: 1.if a,b,c share 1400 between themselves.A receive half of b:b receive half of c:how much c receive. ...
A: 1.if a,b,c share 1400 between themselves.A receive half of b:b receive half of c:how much c receive. ...
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| this is the correct one | 11/21/2008 |
Q: i know your getting this one twice lynn but i forgot to add the powers^ to a couple of them -sorry ...
A: 21. h(x) = 2x^3 - 5x^2 Find h(-5) a.) -375 22. f(x) = 15 - 6x g(x) = 3/5 x Find ...
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| math please help | 11/19/2008 |
Q: can you help me to figure out how to simplify and solve line by line 12y=2y+40
A: The goal is to get y by itself, so you have to start by combining like terms. To do that, subtract ...
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| help! | 11/17/2008 |
Q: 11. f(x) = 4x + 2 h(x) = -7x - 5 Find f(x) - h(x) a.) 11x - 3 b.) 11x + 7 c.) ...
A: f(x) = 4x + 2 h(x) = -7x - 5 Find f(x) - h(x) d.) -3x - 3 12. f(x) = 4x + 2 h(x) = -7x - ...
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| Locker problem | 11/17/2008 |
Q: Famous Locker problem Here is the famous locker problem: Imagine you are at a school that has 100 ...
A: All the lockers will be open except those that are perfect squares (ie, 9, 16, 25, 36, 49, 64, 81, ...
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| help! algebra2 | 11/16/2008 |
Q: 11. Martha's age is twice that of her brother Ned. The sum of their ages is 24. Find the age of ...
A: Not really a follow up, next time, start a new question.1. Solve the system: x + y = 4 ( y + 2 ) ...
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| help! algebra2 | 11/16/2008 |
Q: 11. Martha's age is twice that of her brother Ned. The sum of their ages is 24. Find the age of ...
A: 11. Martha's age is twice that of her brother Ned. The sum of their ages is 24. Find the age of ...
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| algebra2 | 11/14/2008 |
Q: appreciate it very much. what would you get for the problem? 12. Find the linear equation given ...
A: 12. Find the linear equation given the following information:m = -4/3 and y-intercept = -1 d.) y = ...
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| FRACTION EQUATIONS | 11/14/2008 |
Q: How do I explain to my daughter the steps in solving this fraction equation. g+1 3/4=5 5/12-3 1/2
A: Before I can answer, I need to know the actual problem. Is the eq (g+1)(3/4) = (5 5/12) - (3 1/2) ...
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| problem solving | 11/13/2008 |
Q: Execute each of the indicated multiplications: (1). x(a+b) (2). 3x^2(7x + 8y) (3). (3x +2)(8x +5) ...
A: (1). x(a+b)= xa+xb (2). 3x^2(7x + 8y)= 21x^3 + 24x^2y (3). (3x +2)(8x +5) = 24x^2 + 31x +10 ...
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| expressions | 11/12/2008 |
Q: I am just not getting it :( Simplify the following expressions by combining as many terms as ...
A: combining terms, just means, take all the terms that are the same and add them together. Let's say ...
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| help! algebra2 | 11/11/2008 |
Q: i have learned alot from this website. This place is awesome! what would you get for these problems ...
A: 1. a.) Range {-5, -2, 1, 4} 2. a.) Range {0, 1} 3. a} Range {-5, -12, 0} 4. b.) Range {0, -2} ...
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| problem solving college | 11/3/2008 |
Q: . Given the slope of the line and a point on the line, find the equation for each line. (a) A line ...
A: I'll explain how to do it and do the first one. You can practice on the other two. (a) A line of ...
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| problem solving college | 10/31/2008 |
Q: Identify the units on the variable x in each of the following situations: 1. x = fp both f and p ...
A: Not sure if this is what you're looking for, but I think 1 is sq inches, 2 is cubic feet, 3 is ...
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| Situation at work | 10/30/2008 |
Q: 4.1 Seven equal lengths have to be cut from a single plank of wood, 2 metres long. An ordinary hand ...
A: 4.1 28.5cm each (2 metres = 200 cm, divided by 7 = 28.5) 4.2 For this one, take each of the ...
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| problem solving in college | 10/29/2008 |
Q: Solve for x in each of the following: (a).x = y^2 z^3 if y = 3 and z = 2 (b). x = y^2 z / t if y = ...
A: You're given the value of certain variables, so just plug those values into the equations. Solve ...
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| a thank-you and a follow-up | 10/28/2008 |
Q: this place really shows my mistakes and helps me get the right answers thank you Lynn. 1. Solve: | ...
A: 1. Solve: | 3 x + 2 | > 4 a.)x < -2 or x > 0.67 2. Solve: 8 = | 5 y + 2 | c.)y = -2 or y = 6/5 ...
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| Irrational Number | 10/28/2008 |
Q: 1. 4√2 x 5√2 = 4(1.4)(5)(1,4)=39,2 2. 6√ 8 + 3√8 = 9√ 16=36 3. To ...
A: Are you just checking your work, since you have answers for each question? Assuming your teacher ...
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| math: number pattern's | 10/27/2008 |
Q: i am trying to figure out how to teach my 5th grader to understand how to figure out how to solve ...
A: There's no real process to solving number patterns, it's mostly trial and error. You just have to ...
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| help! | 10/26/2008 |
Q: i just need to check my work- thankyou 31. Solve: -6 ≤ 2 - 3m ≤ 7 32. Solve: ...
A: 31. -5/3 ≤ m ≤ 8/3 32. -4 > n ≥ 1/2 33. n > 1/5 and n < -1/2 (this can't be, so ...
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| yess! thank you i knew i was right | 10/24/2008 |
Q: 11. simplify: -2 (5 - 8)^3 which choice?: a.)18 b.)54 c.)-29 d.)-18 12. Simplify: ...
A: With multiple choice, it very easy to just "test" the answers to figure out which one is correct. ...
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| help! algebra2 | 10/22/2008 |
Q: 11. simplify: -2 (5 - 8)^3 which choice?: a.)18 b.)54 c.)-29 d.)-18 12. Simplify: ...
A: I'll do a couple of these, but I'm not going to do your entire homework assignment... 11. simplify: ...
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| Basic math ( decimal) | 10/22/2008 |
Q: 1. Write the decimals in order from smallest to larget 0.05, 0.0057, 0.005 2. ...
A: 1. Write the decimals in order from smallest to largest 0.005, 0.0057, .05 For the remainder, if ...
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| Math - Basic Algebra | 10/22/2008 |
Q: I do not understand how .30c + 2000 + .60c + .06c = $50,000 One person said c = .04, but I don't ...
A: You have to solve for c. In order to do that, start by combining like terms, so you get 2000 + .96c ...
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| math | 10/6/2008 |
Q: can you tell me how do you do estimation of sum? please and thank you. and can you tell me if i can ...
A: An easy way to estimate a sum is to round the numbers. If you want to estimate 80, 205, 106, 140, ...
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| algebra equations | 10/4/2008 |
Q: how do i get the answer to this problem -1+x=3
A: If you want to get the variable (x), by itself, you need to "undo" everything that has been done to ...
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| Long division | 10/1/2008 |
Q: I left school years ago and just wanted to refresh my knowledge on basic maths principles. One thing ...
A: 34623 divided by 1292 (the process is the same whether it's big or small numbers). ...
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| Biochemistry | 9/28/2008 |
Q: how do I do the conversion step by step when calculating molecules to moles. I can not seem to get ...
A: Don't know too much about molecules, but mathematically if it's 3.01 x 10^24 molecules to moles, ...
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| math | 9/26/2008 |
Q: 101,376 inches equals how many miles
A: 1.6 The easy way to get that is to go to http://www.onlineconversion.com/area.htm and type in the ...
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| NEED HELP WITH THE MATHS BEHIND A REAL LIFE SCENARIO | 9/25/2008 |
Q: I have a real life maths problem scenario but I need a maths expert to help me as I cannot get my ...
A: Ok. Hopefully this will be the last response and things will be clear for both of us. If (and I ...
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| NEED HELP WITH THE MATHS BEHIND A REAL LIFE SCENARIO | 9/24/2008 |
Q: I have a real life maths problem scenario but I need a maths expert to help me as I cannot get my ...
A: Bottom line, as far as I can see from your explanation, is yes, you would be saving by buying the ...
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| decimal points in mathematics | 9/24/2008 |
Q: what are the basic rules when using decimal points in basic division questions?
A: basic rule for decimals when doing long division is that you move the decimal in the divisor, so ...
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| Equation for perpendicular line | 9/24/2008 |
Q: My son and I are trying to find the equation of a line perpendicular to a given line. There are, ...
A: If you are not given any points that the perpendicular line has to go through, then y = -1/3x + 2 ...
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| real solutions? | 9/24/2008 |
Q: I have a equation for which I need to find the real solutions Q:- The equation square root (under ...
A: B If you want to know how to solve it. You sq both sides of the eq, which gives leaves you with ...
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| NEED HELP WITH THE MATHS BEHIND A REAL LIFE SCENARIO | 9/23/2008 |
Q: I have a real life maths problem scenario but I need a maths expert to help me as I cannot get my ...
A: Ok. I think the answer to your question is yes, it would benefit you to buy cheaper gas. If they ...
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| Algebra II | 9/23/2008 |
Q: Write an equation for the line that goes through (-3,-1) and is perpendicular to y=-2/5x-4
A: If the line is perpendicular to y = -2/5x-4, then the slope of the line you're looking for is 5/2 ...
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| 8th grade algebra | 9/22/2008 |
Q: Please help me help my daughter 15+(-32)=
A: 15+(-32)= is the same as 15 - 32, which = -17 When you have parenthesis, if the sign in front is ...
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| Basic Math- Ratios | 9/21/2008 |
Q: How can I take the fraction ratio 5 3/5 to 2 1/10 and reduce it to simplest form?
A: First step is to turn them into whole fractions (not mixed), so 5 3/5 = 28/5 and 2 1/10 = 21/10. ...
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| Discount question | 9/18/2008 |
Q: PhotoFinish Co. is offering its preferred customers a 25% discount on its most popular product ...
A: Discount would be .25*55 and total price is 55 - .25(55) Discount = $13.75 and final price is $41.25 ...
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| Fractions & Division | 9/18/2008 |
Q: Why does a fraction indicate dividing the numerator by the denominator, as in 2/5 represents 2 ...
A: I'm not sure how to answer that... the bar is just another way to write a division sign. If you ...
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| RE: Finding the slope | 9/16/2008 |
Q: My professor's pretty dynamic so I can't quite understand the way he teaches the class. Help! The ...
A: The formula to find the slope when you have 2 points is y2-y1/x2-x1, where the one and two mean the ...
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| Finding the Lines | 9/15/2008 |
Q: I get so confused about these problems: what formula would i use? Given the following equation: ...
A: There's no formula, it's more of a visual in this case. The thing about math is that there are ...
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| Finding the Lines | 9/14/2008 |
Q: I get so confused about these problems: what formula would i use? Given the following equation: ...
A: The easiest way to solve this is to make a table with x and y values. Start with x = 0 and solve ...
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| Math | 9/13/2008 |
Q: the symbols < / > I'm confused on the direction meanings greater than less than.
A: This is the way I remember it... Look at the symbol, the point is less then the other side, right? ...
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| common and least common multples | 9/10/2008 |
Q: 8 and 12 3 and 15 7 and 11 9 and 10
A: Least common multiple, just means, what is the smallest number that both numbers will go into ...
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| Solving equations... | 9/10/2008 |
Q: i dont understand this math stuff im in 8th grade... umm here is a problom 25x+13-33X=-130
A: Ok, you didn't actually say what you needed to do with the equation, so I'll assume that you need to ...
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| regrouping with multiplcation | 9/9/2008 |
Q: My son is in the 5th grade and their math is sort of different than when I was in school. the ...
A: Ok, had to look around a little, but basically, what it means is how many times the product carries. ...
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| least common multiples | 9/7/2008 |
Q: please i can't get the least common multiple of 2,3 5,7 and 11,19 I need help
A: Simply, the question is, what is the smallest number that 2,3,5,7,11,19 all go into. Usually, the ...
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| Algebra 2 | 9/5/2008 |
Q: At noon one day, the river peaked at 11 feet above flood stage. It than began to recede its depth ...
A: a) noon to 3:30 is 3.5 hrs, 3.5*4=14 inches, so the river is still 9'10" above flood stage. b) t ...
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| math | 9/1/2008 |
Q: What are 10's equal to?
A: I'm not sure I understand your question. Can you give me some more info? "10's" are the second ...
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| y-intercept in graphs | 8/30/2008 |
Q: I was wondering what the significance of y-intercept was in graphs. I look forward to your reply. ...
A: Not sure I understand the question... the y intercept is when x=0 or when the line crosses the y ...
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| math question | 8/29/2008 |
Q: what type of number has an odd number of factors? give examples
A: Well, it can't be prime because prime numbers always have two factors, 1 and the number itself. The ...
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| Math (algebra) Helping daughter EEEEE | 8/28/2008 |
Q: She has a problem where x=7 and y= -2 x=2 and y=3 x=3 and y=2 x=4 and y=1 How to figure AND ...
A: Ok, the only thing I can think of is that your daughter is doing graphing and these are points on a ...
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| calculation | 8/23/2008 |
Q: I read on a website that tundras comprise 1/7 of the earth's surface. I assumed this to mean 1/7 of ...
A: Think about an easier example. Suppose 2/3 of the Earth's surface is land and 1/3 of the Earth's ...
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| algebra | 8/22/2008 |
Q: D/2 + F/4 = 6 ANSWER: What do you need to do? Solve for D? Solve for F? You can't solve for 2 ...
A: D/2 + F/4 = 6 multiply everything by 4 (the lowest common factor of 2 and 4 so you can get rid of ...
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| ALGEBRA | 8/22/2008 |
Q: 5/2 * N = 98 - N ANSWER: 5/2 * N = 98 - N add n to both sides 5n/2 + n = 98 multiply everything ...
A: I explained what I did at each step (after the eq) 5/2 * n is the same as 5/2 * n/1, which equals ...
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| Math | 8/21/2008 |
Q: Write the greatest common factor for each set of numbers 1)6,15 2)7,35 3)6,8,12 4)16,24 5)21,56
A: All they want to know if what is the largest number that goes into each number evenly. 1) since the ...
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| how? | 8/20/2008 |
Q: please teach me how to divide i don't know how to... i need reply ASAP
A: I'm not sure how much help I can be without being able to draw a long division sign, but I'll try. ...
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| equivalent decimals | 8/15/2008 |
Q: What is an equivalent decimal for 5.3 0.034 0.1230 and 9.030
A: I'm not sure what the question is. Do you have decimals to choose from? Equivalent to what? 5.3 ...
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| percentages | 8/13/2008 |
Q: A ball dropped from a certain height rises after bouncing to 30 % of its original height. After ...
A: Let x equal the height the ball was dropped from. So, if the ball rises 30% and the ball rises 2.5 ...
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| Maths and Small Business | 8/13/2008 |
Q: Juliet and Damien are equal partners in a fruit and vegetable business and have noticed that their ...
A: I can't accurately post a table in this space, so I'll try and explain how to do the problem. ...
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| maths | 8/11/2008 |
Q: A car was bought for $16000. Each year the car depreciates by 15% of its value at the beginning of ...
A: Each year the car depreciates by 15% of its value at the beginning of the year. Find the value of ...
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| Algebra Review | 8/11/2008 |
Q: We have homework that is a review before the school year starts and I do not remember how to solve ...
A: 2(M-2)>4-3(1-M) Do the multiplication 2M-4> 4-3+3m combine like terms 2m-4> 1+3m add 4 to both ...
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| numbers and operations | 8/5/2008 |
Q: 1.Which one of the following numbers is all prime numbers? A. 2,3,5,9 B. 3,11,23,31 C. 2,5,15,19 ...
A: A prime number is a number where the only factors are 1 and the number itself. That is, it can't ...
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| 4th grade math made fun? | 8/4/2008 |
Q: Do you have any FUN tips to help a (soon-to-be)4th grader with multipication tables? We have tried ...
A: Sorry, I really don't have any other suggestions than to do what you're doing (ie, make it real). ...
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