Mathematics - 27 July 2007

2007-07-27 08:24:06 · 6 answers · asked by Anonymous

iam pour a slab of cement, 100x150 = 15,000 square feet, its going to cost me $50,000 how much is that a square foot.?

2007-07-27 08:19:53 · 8 answers · asked by Anonymous

2007-07-27 08:04:57 · 11 answers · asked by Anonymous

2007-07-27 08:03:45 · 9 answers · asked by swthrtdl 1

2007-07-27 08:02:34 · 6 answers · asked by swthrtdl 1

Evaluate the expression.
105 - 45 ÷ 15 + 6

A. 96

B. 108

C. -15

D. -48

2007-07-27 07:56:51 · 9 answers · asked by Anonymous

Simplify: (x^2 + 3x - 5) + (4x^2 - 7x - 9)

A. 4x^2 - 10x + 4

B. 4x^4 - 4x^2 + 45

C. 5x^2 - 4x - 14

D. -3x^2 - 4x - 4

2007-07-27 07:55:59 · 3 answers · asked by Anonymous

I need to simplify:

[ ( a / b ) - a ] / [ a + ( a / b ) ^2 ]

so that it equals:

[ b ( 1 - b ) ] / [ b^2 + a ]

Please help, and show working with explanation if necessary.

2007-07-27 07:46:19 · 4 answers · asked by dixie4x42000 2

There are several proofs. The one I like best is based on the inequality e^x >= x for every real x, with equality if, and only if, x = 0.

2007-07-27 07:44:54 · 3 answers · asked by Steiner 7

2007-07-27 07:20:28 · 7 answers · asked by LASHANDA F 1

2007-07-27 07:18:47 · 9 answers · asked by LASHANDA F 1

http://alexandersemenov.tripod.com/ya/vrtr/index.htm

The frame can slide on the flat top of the desk.
Two red rods of length 30 can revolve around fixed point A and one green rod of lenght 2 can revolve around fixed pont B, |AB| = 34.

The lenght of four blue rods is 18 each.

What is the area of the loop made by joint C, after green rod completes one revolution?

2007-07-27 07:18:03 · 3 answers · asked by Alexander 6

multiply in simplest form

2007-07-27 07:16:44 · 7 answers · asked by LASHANDA F 1

2007-07-27 07:15:22 · 5 answers · asked by LASHANDA F 1

any triangle is congruent to itself. Explain how this observation can be used to prove the isoceles triangle theorem.

if anyone can help that would be great. I really cant figure this out.

This is another question i had problems with so if u can help with this id appreciate it.

Prove that the square root of 13 is irrational. I know that 3n^2=m^2 but how would this prove its irrational??

2007-07-27 07:14:53 · 2 answers · asked by moooona1987 2

Does the following set of ordered pairs express the first variable as a function of the second variable?
{(3, 4)(-3, 2)(3, -3)(-3, -4)(1, -1)(-1, -3)}

A. yes
B. no

2007-07-27 07:07:06 · 6 answers · asked by just me 1

2007-07-27 07:00:53 · 6 answers · asked by Anonymous

does it really have to do with math?

2007-07-27 06:59:26 · 4 answers · asked by Anonymous

Solve the following compound inequality and express the answer in interval notation. 2x < 10 and -5x < 5 No spaces please!

2007-07-27 06:56:15 · 5 answers · asked by just me 1

2007-07-27 06:56:05 · 5 answers · asked by shivanand mogha 1

(1) x = 3y - 2
2x + 4y = 16

(2) 2x + y = 7
5x - 2y = 4

2007-07-27 06:54:33 · 6 answers · asked by Anonymous

(1) 4x + 2y = 8
2x + y = 1

(2) x + y = 4
2x - y = -7

2007-07-27 06:46:42 · 4 answers · asked by Anonymous

2007-07-27 06:43:00 · 8 answers · asked by V.S. 2

4x - y = 6
3x + y = 1

A- (-2,1)
B- (1,-2)
C- (5,14)
D- (2,2)

2007-07-27 06:35:18 · 5 answers · asked by Anonymous

Identify the variable and write an inequality or equality that describes the following situation. Katie weighs at most 63 pounds .

A. k > 63
B. k < 63
C. k = 63
D. k < 63

2007-07-27 06:32:25 · 4 answers · asked by just me 1

"Every fraction (rational number) has a corresponding decimal form that either terminates or repeats. For example,5/16 = 0.3125 (the decimal form terminates),and 4/11= 0.363636 . . . (the decimal form repeats). Investigate a number of fractions to determine which ones terminate and which ones repeat.(Hint: You can focus on the denominator; study the prime factorizations of several denominators

2007-07-27 06:28:22 · 3 answers · asked by Anonymous

http://answers.yahoo.com/question/index;_ylt=ApipziS.8Ju6yI1hwFTLWEnsy6IX?qid=20070722014728AAK992y&show=7#profile-info-8WAx4M5daa

And yet people on Yahoo! Answers, including top contributors, manage to do it, and apparently get away with it, since they're still "top" contributors.

2007-07-27 06:27:28 · 3 answers · asked by Jeffrey W 3

2007-07-27 06:11:10 · 8 answers · asked by big red 1

Solve the following inequality. 3 - 3x < 21

2007-07-27 06:02:32 · 5 answers · asked by Monkey Kick 1

Could someone please explain how to do this?

Simplify each of the following:-(-7) -(-(-7)) -(-(-(-7)))

2007-07-27 06:01:14 · 7 answers · asked by Yep it's me 2