Mathematics - 9 October 2007

Solving Equations with Variables on Both Sides

x + 2 = x = 4

I need help on how to do it. I don't want the answer. I want steps on how to figure it out. I really don't get it and please be very precise.

I also need help on these kinds

-2x + 8 = 2x + 4

2(f + 3) + 4f = 6 + 6f

I really don't get it. Even if you do tell me the answers these questions are Reteach questions. I don't turn these in for any credit.

2007-10-09 13:35:32 · 7 answers · asked by KB 2

sin^4 x + sin^4 (x + 45) sin^4 (x - 45) = 9/4

thanks for the help

2007-10-09 13:35:24 · 1 answers · asked by chumme 1

Light travels at a speed of 3.00 x 10 ( to the power of 10 ) cm/s. What is the speed of light in kilometers per hour?

I tried to solve this by changing units but got confused by the exponents. The answer is 1.08 x 10 (to the power of 9) km/hr but how do they get this?

2007-10-09 13:31:52 · 3 answers · asked by Krumpits&Tea☺ 2

Is it x = .1 ?

2007-10-09 13:27:59 · 12 answers · asked by shawna 2

A) 1
B) 5
C) 3
D) 7

How did you get your answer?

2007-10-09 13:22:59 · 2 answers · asked by Anonymous

I'm having trouble with this type of math, but before you read the rest, I DON'T JUST WANT AN ANSWER!!!
I want someone to explain every step of how to do this.
Also, please explain why you do something

Find the variable:

3n-2
------
5

equals

7
----
10

those are fractions by the way

2007-10-09 13:15:21 · 5 answers · asked by supertaters 2

35x^3y^4 - 60x^4y

2r^3 + 250

100m^8 - 9

162x^6 - 98

2007-10-09 13:11:40 · 1 answers · asked by koolkid23 2

2007-10-09 12:53:12 · 2 answers · asked by Anonymous

2007-10-09 12:52:59 · 8 answers · asked by Tommy J 1

I'm working on inverses and verifying that they work.. this is one of the three equations I have a question on.

2007-10-09 12:46:32 · 4 answers · asked by darlingdork 1

After 15% sale & 7% tax, your bill for a suit is $75. What was the retail price?

i completely forgot how to solve problems like this, but for some reason i have the urge to do 15%-7%= 8% which is probably wrong.
anyways, can someone explain to me how to solve this?
thanks

2007-10-09 12:45:32 · 4 answers · asked by ♥ 2

I have some problems that need to solve using Maple, but I don't know what are the commands. If you know how to use it send me and e-mail or a message and we can talk...please

2007-10-09 12:34:40 · 3 answers · asked by All_real 2

2007-10-09 12:31:42 · 6 answers · asked by Golfnut 3

the relief truck arrived at the village to distribute much needed food. The small village had a population of exaclty 100 people. The truck contained 100 lovaes of bread, and the food was about to be distributed evenly when the village chieftain suddenly stopped proceedings. "the elders of the village have decided that each child will recieve half a loaf of bread, each woman two loaves of bread and each mand three," bellowed the chieftain/ " But we may not have enough bread in those proportions," argued a relief worker. :You have 100 loaves?' asked the chieftain. "yes" replied the worker. "then thats exactly enough" How many men, women, and children lived in the village?

2007-10-09 12:31:07 · 3 answers · asked by Anonymous

ok so the question is
y=-2|3(x+4)|+5
so i know that it is a verticle compression of 2 and a horizontal stretch by 1/3
the normal step pattern is over 1 up 1 over 1 up 1
so does that mean i multiply all over 1s by 1/3 and divide all up 1s by 2?

2007-10-09 12:18:44 · 1 answers · asked by Anonymous

The sum of Louise's age and Todd's age is 34 years. 5 years ago, the sum of twice Louise's age and 3 times Todd's age was 61 years. How old are they now?

2007-10-09 12:18:06 · 4 answers · asked by sweet_teeq 1

2007-10-09 12:14:58 · 1 answers · asked by Anonymous

2007-10-09 12:12:22 · 10 answers · asked by Anonymous

A circle has a diameter of 6 cm. A sector of the circle has a central angle of 80°. What is the area of this sector?

2007-10-09 12:06:32 · 4 answers · asked by Mike H 2

For what value of k are the roots of 3x^2-6x+k=0

2007-10-09 12:03:35 · 1 answers · asked by baseballman1243 1

2007-10-09 12:01:31 · 2 answers · asked by thebestinme17 2

2007-10-09 11:57:41 · 2 answers · asked by Lizzet25 2

u must use all numbers and u can use each number only once!u can use only the following operations:+,-,x,/!!!!u can't combine the numbers e.g.(14 or 43) Good Luck!it's a bit tricky

2007-10-09 11:55:31 · 4 answers · asked by xxxxxx 2

2007-10-09 11:53:01 · 2 answers · asked by Anonymous

Given:
A = (1,1,1)
B = (2,-1,1)
C = (1,2,-3)

2007-10-09 11:49:55 · 1 answers · asked by Ryan 1

a(give the degree of the polynomial)
b(give the coefficient in the highest degree term)
c(give the constant term)
d(decide the polynomial of one or several variables)

1. 10-3x-x^2

this is what i think\
a=1
b=10
c=10
d=1 variable

also how do i go about this one, i have no clue
7x^2 y-14xy^3 z

2007-10-09 11:49:11 · 2 answers · asked by revin_07@sbcglobal.net 2

HELP! Find the function value. f(x)=x^3 f(-6)=

This is the only problem I cannot figure out.

2007-10-09 11:47:00 · 3 answers · asked by iwishiwereanangel 3

http://i21.tinypic.com/insh6q.jpg

O is the center of dilation. AO = 15 and BO = 20. The dilation contant is 3. AB = 12.

What is:
1) A'O
2) B'O
C) A' B'

What are the answers and how do you get them?

2007-10-09 11:45:11 · 1 answers · asked by Anonymous

know ive come on here many times just looking for the answers but this time i want the answers =) but i also wanna learn this!!!


aight heres 5 questions from my math homework today

solve each compound inequality.
question #25) 4 + k > 3 or 6k < -30

question #27) 6 - a < 1 or 3a < 12
question #29) 5y + 7 < -3 or 3y - 2 > 13
question #31) 5z - 3 > 7 or 4z - 6 < -10
question#33) -3n < -9 or -2n >10

2007-10-09 11:43:59 · 3 answers · asked by Mikey A 1

I try and try but cant seem to understand. I know it has something to to with Pascle's Triangle but the more I read about the more I get confuse. How do I rewrite (h-1)^3 using the formual for the cube of a binomial?

2007-10-09 11:36:41 · 3 answers · asked by piicaso87 2