Mathematics - 21 August 2007

2007-08-21 15:56:12 · 6 answers · asked by Anonymous

please show me how

2007-08-21 15:55:40 · 6 answers · asked by Anonymous

2007-08-21 15:31:28 · 3 answers · asked by blue15 1

Ok so i did like all these problems but i got ALL of them wrong. and my wrong answers make so much sence to me so i have no idea how there wrong. Could you please show the steps for these problms/exmplain. I have a terrible math teacher who doesnt teach anything. really frustrating

1. |4-x| - 10 = 1

2. |2x-5| = 3x + 4

3. |3x| -4 >8

4. |3x-6|+3<15

5. 7|8-3x| = 21x-49

6. 1/4|4x+7|= 8x+16

7. 1/11|2x-4| + 10<(greater then or equal too)11

2007-08-21 15:30:43 · 3 answers · asked by Anonymous

2007-08-21 15:29:52 · 4 answers · asked by Anonymous

An average school bus holds 45 people. Sketch a graph showing the relationship between the number of students who need bus transportation and the number of buses required. Be sure to label the axis.

2007-08-21 15:28:03 · 3 answers · asked by Nicole 5

Juan loves making home improvements. His next project is his backyard. He wants to place a 2ft wide marble walkway around his pool. The rectangular pool measures 15ft wide and 20ft long.

Draw a diagram of Juan's pool and walkway. (Label the dimensions)

Find the area of the walkway that surrounds the pool.

Juan found a good sale at Marble World. The marble that he wants to place around his pool costs $25 per square foot. How much will Juan spend on the marble to make the walkway around his pool? (Round to the naerest hundredth)

2007-08-21 15:25:01 · 6 answers · asked by angel 1

2z-5(z+2)=-8-2z

also

5t-2(5+4t)=3+t-8

2007-08-21 15:23:44 · 3 answers · asked by LEE 1

12 20 35

2007-08-21 15:05:19 · 4 answers · asked by rudyspuddin 4

of 15 45 and 90

2007-08-21 14:52:05 · 7 answers · asked by rudyspuddin 4

wats the formula that you have to do to solve these kinds of problems? thanx

2007-08-21 14:32:17 · 16 answers · asked by princessesa 1

A. 102.53070
B. 656,980
C.0.008543210
D.0.000257870
E.-0.0357202

2007-08-21 14:27:22 · 2 answers · asked by jonathan m 2

2007-08-21 14:17:38 · 9 answers · asked by shy one 2

Describe a practical way of dividing the cupcakes evenly among everyone present.

2007-08-21 14:17:35 · 2 answers · asked by pete63daddy 4

1. The only way to solve for x on this equation: 2x^2 - 5x - 3 = 0; is to use the quadratic formula

true or false?

2, x^2 - 3x - 5 = 0

solve for x

3. x^2 - 5x - 2 = 0

4. Solve for x

3x^2 + 10x + 5 = 0

5. x^2 - 6x + 8 = 0

x = _______ and x = _______

6. 5x^2 + 2x - 3 = 0

7. 2x^2 - 12x = -18


x = ______

8. 3x^2 + 2x - 8 = 0

solve for x

9. 2x^2 + 7x - 4 = 0

10. 4x^2 - 36 = 0

means that x = +/- ______

2007-08-21 13:58:04 · 3 answers · asked by ilove y 1

Solve the equation: x – 21 = 45
Show all your work Identify the Property which correctly solves the equation: x – 9 = 20.

Addition Property of Equality

Subtraction Property of Equality

Multiplication Property of Equality

Division Property of Equality
Identify the correct step to solve the equation: x – 8 = 21

Subtract 8 from both sides of the equation.

Add 8 to both sides of the equation.

Multiply both sides of the equation by 8.

Divide both sides of the equation by 8.

2007-08-21 13:50:19 · 4 answers · asked by MiSs MoM 2

2007-08-21 13:48:22 · 18 answers · asked by roxygurl_guessgurl 1

Refer to figure, Which similarity can be used to prove that triangle ABC ~ triangle JKL?
http://i56.photobucket.com/albums/g198/simplybebop/untitled13.jpg

In the figure L II m II n. Find DF
http://i56.photobucket.com/albums/g198/simplybebop/untitled24.jpg

2007-08-21 13:39:11 · 3 answers · asked by simplybebop 1

i have no clue how to do this kind of a problem please help.

solve the following equation

6k=2/3 (5p-2)


and
3/4x + 1=4

how did you solve it?

2007-08-21 13:25:14 · 2 answers · asked by Anonymous

2007-08-21 12:55:44 · 4 answers · asked by Anonymous

2007-08-21 12:55:09 · 12 answers · asked by Anonymous

Can some one show me how to solve this.

The equation .2t 3rdpower+.2t 2nd power-8t+1=.1t 2nd power+3t+2


has three solutions. find them(accurate to three decimal places.)

2007-08-21 12:54:30 · 3 answers · asked by TJW 1

2007-08-21 12:44:56 · 15 answers · asked by Anonymous

i have to write an algerbraic expression for the word problems and out of the 60 i cant get these....

let t be the total amount kat spent for blouses. each of the 5 blouyses cost the same. write an expression for the cost of each blouse.

let d be the distance paul ran. steve ran a third as far as paul. write an expression for he distance steve ran.

if anyone could help that would be great

2007-08-21 12:44:49 · 5 answers · asked by Anonymous

How do u solve this system of equations?

-x + 3y = 0
2x + 6y = 12



thank u =]

2007-08-21 12:43:52 · 5 answers · asked by Anonymous

1, 4, 9, 16...

What's the next number and the method that the sequence is using?

2007-08-21 12:43:10 · 4 answers · asked by Anonymous

Hi. I need a solution to this problem. The question is find the perimeter and area of the shape. In my book it says that the answer is : Perimeter is 49.7cm and the Area is 129.3cm2.
The measurements are 4cm, 5cm, 6cm and 7 cm.

A rough image of the shapes are here:
http://img373.imageshack.us/my.php?image=areapm1.png

I know how to do areas of complicated shapes. You basically use the areas of shapes individually etc and then add them up, but this one is giving me problems.

When i try and do it i work with the top rectangle 6x7= 42cm2. Bottom rectangle 4 x 12 = 48cm2. And for the semicircle i use the area of circle foruma 'Pi * r2" and then divide 2. The radius seems to be 5cm when i do it. So 3.14*5 subtact 2 = 39.25cm2. I get the total area 129.25cm2 instead of the correct answer which is 129.3cm2. I was wondering if some people could post a guide on how to work it out and tell me what i am doing wrong. Also can you explain the perimeter. Thank you very much.

2007-08-21 12:23:58 · 4 answers · asked by Jay Garrick 1

use properties and definitions of operations to show that the statements is true. JUSTIFY EACH STEP

6 (a ÷ 3) = 2a

2007-08-21 12:22:34 · 3 answers · asked by CELL 2

1.) 3x+5 = 23

2.) 4x+2 = 7x+1

3.) 8-3x =2+4x

4.) 5+9x = 5

and if possible, please explain... thanks in advance...

2007-08-21 12:21:10 · 7 answers · asked by Juan C 6

2007-08-21 12:14:14 · 4 answers · asked by Michael H 2