Mathematics - 17 September 2007

is there any online calculators that i can use to get solutions to these kind of problems

1. y 5/2

2. q 3/2

2007-09-17 14:27:05 · 1 answers · asked by percy m 1

anyone know how to solve this? you gotta use elimination.

2007-09-17 14:21:58 · 8 answers · asked by Anonymous

if the perimeter or a rectangle is 82ft and the length is 15ft longer than the width. What are the length and width

2007-09-17 14:21:41 · 2 answers · asked by hee-ya-coo 2

We want to know what numbers belong to the image of (a + 1)(a +2b) / 2, and I believe it's all natural numbers except those in the form of 2^n based on plugging in some numbers.

But I don't know how to start proving.

2007-09-17 14:21:04 · 1 answers · asked by Anonymous

What three dimensional figure could be made with a circle, triangle, and a square?

2007-09-17 14:14:38 · 4 answers · asked by John 2

whats the square route...

of 6

of 50

of 2

thanks..

2007-09-17 14:13:22 · 6 answers · asked by Alexxxxxxxx 1

Solve each system of inequalities by graphing

x+y<8
x greater then or less then 0
y greater then or less then 0

( fyi, greater then or less than is this > with a line underneath)

technically I already have the answer

at y i have it plotted at 6 (y vertical line)

and at x i have it plotted at 7

My problem is I keep looking at this problem having no clue how that answer is true. I also dont understand the whole shade up or shade down thing (in this problem its shaded below so that with the line drawn it looks like a right triangle)

so to sum it up could someone tell me how to graph these types of problems?

2007-09-17 14:11:46 · 2 answers · asked by Anonymous

How would i figure this out. That is a sample problem, any help would be nice.

2007-09-17 14:10:44 · 6 answers · asked by bearbear 1

how do i convert this decimal problem into a fraction?

.0133333 (repeating)

2007-09-17 14:10:00 · 2 answers · asked by IDchecker27 2

how do you solve this??? you have to use elimination..

2007-09-17 14:07:16 · 7 answers · asked by lover 1

six cows can do 1 job in 9 days. how many cows would it take to do 3 jobs in 5 days?

2007-09-17 14:01:46 · 6 answers · asked by judykharrison 1

2007-09-17 14:01:09 · 2 answers · asked by Karissa C 1

five years ago, orville was twice as old as wilbur. five years from now, orville will be 1 1/2 times as old as wilbur. how old are both now?

2007-09-17 13:56:52 · 5 answers · asked by judykharrison 1

Many tire manufacturers guarantee their tires for 50,000 miles. If a tires has a 16 in radius, how many revolutions of the tires are guaranteed? There are 63,360 inches in a mile. Round to the nearest revolution.

2007-09-17 13:56:19 · 10 answers · asked by Anonymous

answer in scientific notation.

2007-09-17 13:49:19 · 12 answers · asked by James H 1

The gym is 21 years newer than the auditorium. The gym is also one fourth as old as the auditorium. How old is each building?

This is my equation:
x = auditorium
x-21 = gym
1/4x = gym

Therefor..

x - 21 = 1/4x

When I try to solve it, I just can't seem to figure it out. Is this the right equation? Please solve it and explain for me please.

2007-09-17 13:49:03 · 13 answers · asked by Kim 2

In the following sequence, what could be the next term?

1,4,27,256...........

2007-09-17 13:45:06 · 5 answers · asked by John 2

This problem is so twisted. I tried like three times but could not get it:
The length of a rectangle is twice its width "w". A second rectangle, which is 8 cm longer and 3 cm marrower than the first rectangle, has perimeter 154 cm. Find the dimensions of each triangle.
Explain to me please? And do not call me stupid!

2007-09-17 13:43:17 · 5 answers · asked by |♥*/♥\*♥| 3

I have the answers to the problems but I need to know how to work it out if anyone can help that would be great! Thanks.

Consider the polynomial (x-a) (x-b) and the real number line

a) identify the points on the line at which the polynomial is zero. (see figure)
b) In each of the three subintervals of the line, write the sign of each factor and the sign of the product.
c) for which x-values does the polynomial change signs?

figure:
---o-----------------------o----->
a b

o stands for a closed circle btw

2007-09-17 13:39:29 · 2 answers · asked by billf39 2

Integers:
sorry, it's ALOT.

1. |10|
2. |-12|
3. |-7|-5
4. 7+|4|
5. |-9|+|-5|
6. |8|-|-2|
7. |-10| / 2x|5|
8. 12-|-8|+7
9. |27| / 3-|-4|

PLeaSE heLP!
sOoO confused!

2007-09-17 13:33:17 · 12 answers · asked by Anonymous

list some examples such as pizza

2007-09-17 13:30:27 · 7 answers · asked by Anonymous

2007-09-17 13:29:01 · 4 answers · asked by Anonymous

Simplify:
1. x[2x+5(3x+9)] =
2. 4a(a-3)-a2+4= (its supposed to be a squared "a2")
3. x[2x+3 x 18]= (note its 3 times 18)

Ok! On number 1 if you multiply x[2x....] does that equal 2x or is that 3x? I can't remember. On number 2 the part where it says 4a(a-3)... I know you use the distributive property but does that equal 4a-12 or is that like 4a(squared)-12?

please show me how to do the problem! ^_^ thanks

2007-09-17 13:27:27 · 9 answers · asked by Anonymous

When you have problems that involve a less than sign or a greater than sign, I know that it's crucial to express your answer in a certain way. I know it involves the concept of and vs or, and I know the U (and the upside down U) for union are involved. I apology for the lack of clarity of my question, but could someone give me some guidance here? Thanks!

2007-09-17 13:24:56 · 2 answers · asked by pretzellogic91 2

What is the value of sin(-240º)?

2007-09-17 13:22:42 · 4 answers · asked by inferno5757 1

AP is an altitude of triangle ABC of the area of triangle ABC=24cm and BC=8cm find the lenght of AP

help please

2007-09-17 13:18:16 · 2 answers · asked by Anonymous

what is the answer to this?? (its not X cubed)
it MIGHT have somthing to do with angles but dont count on it

2007-09-17 13:15:51 · 5 answers · asked by Toy124 1

2007-09-17 13:15:48 · 6 answers · asked by Anonymous

your help is appreciated

can you tell me how you got the answer?

2007-09-17 13:13:47 · 9 answers · asked by Anonymous

Can someone help me with some of these I'm a tad bit confused. Also, telling me why and how it is would be awesome.

1. Can two opposite rays (always,sometimes,or never) form a line

2. Two skew lines are (always,sometimes,or never) coplanar

3. Two Planes that do not intersect are (always,sometimes,or never) parallel

4. Two Lines in intersecting planes are (always,sometimes,or never) skew.

2007-09-17 13:13:40 · 1 answers · asked by AJ 2