Mathematics - 27 June 2007

2007-06-27 07:05:58 · 2 answers · asked by Adeel 2

x^2y-25y+75-3x^2

2007-06-27 07:02:00 · 3 answers · asked by shy_happy25 1

I need help solving this pretty please , I need to factor completely
x^2 y-16y+48-3x^2=

2007-06-27 06:58:55 · 3 answers · asked by shy_happy25 1

The number after a variable in parentheses is the exponent

-2 (3x)2 (xy) (2x)2=

I got -24x5y but my book says it is -72x5y

PLEASE HELP ME!!

2007-06-27 06:52:17 · 6 answers · asked by Anonymous

(-5, -4) and (3, -4)

This is a multiple choice question but I don't see the answer that im coming up with. I think it's -4 but want another set of eyes.
A. 0
B. -1
C. Undefined
D. 4

2007-06-27 06:41:13 · 9 answers · asked by casper5 3

Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. So 96% of the possible Z values are between ________ and ________ (symmetrically distributed about the mean).

2007-06-27 06:38:55 · 4 answers · asked by LG 1

2007-06-27 06:37:22 · 4 answers · asked by natividad c 1

1) Angie needs 20 quarts of 50% antifreeze solution in her radiator. She plans to obtain yhid by mixing some pure antifreeze with an appropriate amount of a 40% antifreeze solution. how many quarts of each should she use?

2) stating the solution to each inequality in interval notation
-3 < or = to x < or = to -1

3) corresponding inequality and solution set
(---|---]
0 1 2

4)1/6-1/3t >0

5) -3/5<1/5-2/15w<-1/3

2007-06-27 06:34:33 · 2 answers · asked by Mandalicious 1

Find the Indicated sums and differences.

1.(x-y OVER x+y) - (y-x OVER x+y)

2. (2k OVER 4k^2-9) + (3 OVER 4k^2-9)


thanks to anybody that can help!

2007-06-27 06:23:49 · 3 answers · asked by Anonymous

The profits of a company are found by subtracting the companys costs from its revenue. If a companys cost can be modeled by 14x+120,000and its revenue can be modeled by 40x-0.0002x^2, what is an expression for the profit?

2007-06-27 06:14:32 · 8 answers · asked by Berry A 2

2007-06-27 06:03:47 · 4 answers · asked by Hadeel 2

19-3n=-2n

2(a-4)+4=5(9-a)

Solve and identify if these are conditional, inconsistant, or identity equations:
1/2b - 1/2=1/4b

0.6(x-50)=18-0.3(40-10x)

t-5x=4x (would this be t=9x and conditional?)

-x/3+y/2=1

2007-06-27 05:47:13 · 3 answers · asked by Mandalicious 1

2007-06-27 05:42:37 · 6 answers · asked by aileen n 1

2007-06-27 05:32:46 · 8 answers · asked by bee 1

2007-06-27 05:31:02 · 4 answers · asked by bee 1

solve for x in ln(x) = -1

2007-06-27 05:30:17 · 7 answers · asked by raleighzia 1

I am coming up with an answer of 5 7/8 but this is a multiple choice question for me and that is not one of the answers. Where am I going wrong?
A. 77/18
B. 97/18
C. 115/18
D. 5

2007-06-27 05:24:57 · 8 answers · asked by casper5 3

1. A person purchased 5k + 2 items for a total cost of 35k^2 + 29k +6. Find the average cost per item of this purchase.

2. Another person bought a certain number of an item at a cost of 4k + 3 each/ Find the number bought if the total cost was 8k^2 +2k - 3.

Thanks to anyone who can help with the factoring.. it confuses me so much.

2007-06-27 05:20:39 · 7 answers · asked by Anonymous

2007-06-27 05:13:12 · 7 answers · asked by Anonymous

A certain box has a volume of b^3 + 3b^2 -4b - 12. Factor the four term polynomial to find the Length, Width, and height of the box.


Thanks to anyone who can answer this... it's been really confusing.

2007-06-27 05:12:32 · 4 answers · asked by Anonymous

help please?

2007-06-27 05:05:23 · 10 answers · asked by Anonymous

2007-06-27 05:02:55 · 3 answers · asked by PATNAITE 1

I don't know how to to make the pie sign on here so i will just use (pie) for it.

Factor the trinomial to find the radius of the circle.

1. (pie)a^2 - 2(pie)a + (pie)

2. 9(pie)a^2 + 6(pie)a + (pie)

2007-06-27 05:02:17 · 3 answers · asked by Anonymous

Hi ive finally decided to fight the gremlins and learn maths my worst subject, as i need it for my nursing. Could anyone help me with this questiuon
a coat is reduced to 88pounds in a 20% off sale what was its pre sale price. Also does anyone know of any good books i can get for level 1 -2 maths. Thankyou for your help

2007-06-27 05:02:11 · 4 answers · asked by Angel1 3

heeeeeeeeeeeeeelp!

2007-06-27 04:59:34 · 8 answers · asked by Anonymous

7r = -14
12

1/3s+7/9=4/3s

v-4(4-v)=-2(2v-1)

9-2m/7=19

3(x-0.87)-2x=4.98

2007-06-27 04:58:50 · 4 answers · asked by Mandalicious 1

Okay so I have (4z - 3)

The next step it asks:

What numerical value must Z be greater than for such a square to exist?

If you know the answer it would help me alot... thanks

2007-06-27 04:57:47 · 4 answers · asked by Anonymous

help me pleeeeeeeeeeeease????????

2007-06-27 04:57:07 · 12 answers · asked by Anonymous

please help?

2007-06-27 04:54:12 · 5 answers · asked by Anonymous

simplify the radical expression

2007-06-27 04:52:10 · 13 answers · asked by Jerry S 1