Mathematics - 24 August 2007

I have the answers, but dont get how to get them.

1- x+10/12 = 3/20
2- 3x-5/6 = 7x+4/4

2007-08-24 09:00:20 · 3 answers · asked by ineedmathhelppeas 1

How to find the sum ?

1 + 3 – 5 + 7 + 9 – 11 + 13 + 15 – 17 + … + 595 + 597 – 599 ?

2007-08-24 08:54:41 · 10 answers · asked by calculus 1

1. Solve:
x^2 + 6 = 31

2. Solve:
-9(x - 3)^2 = -7

2007-08-24 08:49:16 · 7 answers · asked by casper5 3

I just cannot solve this problem. Can you please help and tell me how to solve it?

At 2 cents a square foot, what will it cost to plaster the walls and ceiling of a room 16 ft long, 12 ft wide, 14 ft high, deducting for two doors each 8ft x 4 ft and for three windows each 7 ft x 3 ft?

2007-08-24 08:44:54 · 6 answers · asked by crystalwoods41406 1

The difference of two positive numbers is four. The sum of their squares is 170. What are the numbers? Explain.

Lets see who can answer that one!

2007-08-24 08:38:33 · 24 answers · asked by Anonymous

2007-08-24 08:29:35 · 10 answers · asked by Anonymous

Find the vertex of the parabola.
x^2 - 2x + 44y + 353 = 0

2007-08-24 08:25:58 · 9 answers · asked by Anonymous

I just want to see how it works :)

2007-08-24 08:25:51 · 7 answers · asked by math q 2

What's the speed of the car at the end of the time? And How far does the car travel in this time?

2007-08-24 08:24:44 · 3 answers · asked by Pascal 4

you hit the second key then math...and you get things on the bottom..and theres an arrow key for more options..how do you get that arrow key to move right on a Ti 86

2007-08-24 08:21:57 · 1 answers · asked by katherinebrown06 2

If a frog is one foot away from a wall and jumps halfway to the wall (It is now 6 inches away). If it keeps jumping halfway to the wall will it ever reach the wall?

2007-08-24 08:04:51 · 21 answers · asked by meisawesome 2

Write the standard equation, the center, and the radius for the circle:
x^2 + y^2 - 4x + 6y + 13 = 4/9

2007-08-24 07:48:19 · 7 answers · asked by Anonymous

Write the standard equation, the center, and the radius for the circle:
x^2 + y^2 + 10x + 12y + 60 = 0

2007-08-24 07:46:25 · 3 answers · asked by Anonymous

Okay! I was told that I'm 1/8 of Irish and 87% African -American. I gave details saying that my mom is Irish and Black and her mom is Irish and black and my mom's dad is black and my dad is black. And so therefore someone told me I'm 1/8 Irish and 87% Black. I want to know how do you figure this out? How do you work this Math problem out to know you are 1/8th of something? or 1/4th of something? or 1/3rd of something?

2007-08-24 07:40:39 · 9 answers · asked by Anonymous

2007-08-24 07:30:54 · 7 answers · asked by Alexander 6

b) Through any pair of distinct points exactly one straight line can be drawn.
c) Through each point not on given straight line x exactly one straight line y parallel to x can be drawn.
d) There are at least two distinct straight lines.

How many straight lines are there?

2007-08-24 07:19:25 · 2 answers · asked by Alexander 6

Please help me with these. Whatever way you can help me is fine.

Link: http://www.learningbygrace.org/alg1/images/alg1_15_test.gif

13: In Figure 1, if AC = 5 and BC = 12, what is the length of AB in simplified form?
13
13√1
11

14: In Figure 1, if AB = 12 and BC = 10, what is the length of AC in simplified form?
3√11
2√11
2√12

15: In Figure 1, if AC = 8 and AB = 14, what is the length of BC in simplified form?
2√23
3√33
2√33

16: In Figure 1, if AC = 6 sqrt(2) and BC = 6 sqrt(2), what is the length of AB in simplified form?
12
13
2√12

17: In Figure 2, what is the distance between points A and J?
√86
√89
2√17

18: In Figure 2, what is the distance between points D and B?
2√10
2√11
3√10

19: In Figure 2, what is the distance between points H and E?
2√10
2√5
3√5

20: In Figure 2, what is the distance between points J and I?
26
2√13
√26

2007-08-24 07:02:33 · 3 answers · asked by Kirkylee 3

1. Solve by using the quadratic formula:
x^2 = 7x - 9

2. Solve by using the quadratic formula:
4x^2 + 7x + 5 = 0

2007-08-24 06:55:44 · 3 answers · asked by casper5 3

Okay, I've NEVER seen anything like this! If (x - 2) is a factor of (x^3 +kx^2 + 12x - 8), then what is k?

Also, this has to do with inverse functions, and I think I did everything right, but my answer is consistently different than the one provided! If f(x) = (cubed rt)(x^3 + 1), then what is the inverse of f (1.5)?

Any help would be greatly greatly appreciated! Explanations would be great too since I already know the answers... I just don't know how to solve 'em! Thanks so much!

2007-08-24 06:49:54 · 6 answers · asked by Anonymous

2007-08-24 06:49:31 · 12 answers · asked by Pranil 7

2007-08-24 06:47:46 · 7 answers · asked by hello11 1

Find the values for a, b, and c so that the function
f(x) = x^3 + ax^2 + bx + c
has a critical point at (1, 5) and an inflection point at (2, 3).

2007-08-24 06:38:44 · 4 answers · asked by quizzie 1

Find the general solution to:

2*t*y'+ 4*y = 3...

I feel so silly not even remembering where to start on something like this.

2007-08-24 06:32:39 · 2 answers · asked by Sarah G 1

i need help and fast i need to know how to solve this

2007-08-24 06:28:40 · 2 answers · asked by Kahra K 1

4x^2y^5/12x^3y^2z^-3 how do i simplify that. i know its something witht he exponents biut i forget what to do with them. thanks.

2007-08-24 06:26:40 · 4 answers · asked by Anonymous

A veterinarian has 100 ft. of fencing to construct 6 dog kennels by first building a fence around a rectangular region, and then subdividing that region into six smaller rectangles by placing five fences parallel to one of the sides. Express the total area, A, of the kennels as a function of x, where x is the length of one of the seven parallel fences.

2007-08-24 06:18:48 · 6 answers · asked by Anonymous

2007-08-24 06:13:12 · 9 answers · asked by Anonymous

so i have this summer assign ment and this is one of the two questions i just cant seem to remember. simplify. give answers in positvie exponents. d^-4e^2f^2 thansk so much for your help.

2007-08-24 06:12:31 · 5 answers · asked by Anonymous

so i have a math summer assignment and i cant figure this question. Simplify 2m^3 over 3n^2 thanks soo much for all of your help, some stuff i just cant remember

2007-08-24 06:08:37 · 8 answers · asked by Anonymous

How would you factor the following?

3xˆ2 - 48???

2007-08-24 06:00:25 · 10 answers · asked by Anonymous