Mathematics - 10 November 2007

2007-11-10 12:11:53 · 8 answers · asked by Sarkis D 1

Make sure you give me an equation too.

2007-11-10 12:08:07 · 15 answers · asked by Kaya J 1

2007-11-10 12:04:22 · 7 answers · asked by jlmeritt 1

CD = 4 squared 8?

2007-11-10 11:58:10 · 2 answers · asked by Jen 4

I have a test soon and I don't get it... Can you help me?
I have a couple questions i don't know how to solve... I tried for hours and hours and i still don't get it.. Can u solve it and show your work, so i can figure out how to solve it or explain how to solve it?
3(w+2) = 2(w-1)
6y + 7 = 3 + 2(y-4)
5x - 8x = 3(x+4)
5t - 3t = 5 - 3(t+5)
Thx.

2007-11-10 11:53:53 · 9 answers · asked by Person 2

1.identify the variables,coeffients and constants in the expression -6x-xy+60.
2. Jen takes 7 mins.more to complete an illustration than Jon. The total time taken by both of them is 6 hours. Form an algebraic expression to express this and identify the variable, constant and coeffient of the expression.
3.simplify the expression 7x^2-4y+3x^2+5y+2 and evaluate it for x+3 and y=9. identify the variables,constants and coefficients in the simplified expression.
1. what # is 15%of108?
2. the sum of three consective even #s is 144;what are the numbers?
3. a man buys 5 dvds for $66.34,including 7% sales tax. how much did ea.dvd cost?
4. the area of a rectangle is 45 square cm. if the length is 4cm greater than the width, what are the dimension of the rectangle?

2007-11-10 11:50:34 · 4 answers · asked by A S 1

find in terms of (PI) the solution for:
sin5x + six = 0

i have worked it dwn to this step by using the 'factor formula'..
2sin3xcos2x=0
now i dnt kno how to simply it..can sum1 help plz..thnxs!

2007-11-10 11:47:35 · 3 answers · asked by clueless 1

2007-11-10 11:45:44 · 2 answers · asked by Anonymous

What is %10 of $45?

And how would you do that on a calculator?

2007-11-10 11:29:32 · 8 answers · asked by earthball50@sbcglobal.net 3

a)F(x)=1/(x-2)
b)F(x)=square root(3-x) - 4
Determine domain and range.show your steps

2007-11-10 11:29:10 · 4 answers · asked by Val K 2

2007-11-10 11:11:31 · 7 answers · asked by Anonymous

An incandescent light bulb costs $0.65 to buy nad $0.004/h for electrecity run it. A fluorescent bulb costs $3.50 to buyand $0.001/h to run.
a)use function notation to write a cost equation for each type of bulb.
b)state the domain and range of each equation
c)after how long is the fluorescent bulb cheaper than the regular bulb?
d)deetermine the difference in costs after one year. Assume the light is on for an average of 6h/day

2007-11-10 11:03:52 · 3 answers · asked by Val K 2

What does it mean?: Make a comparison statement in percentage. Im really stupid to ask this, but does comparison statement mean whats the same or whats different?Explain!

2007-11-10 11:01:02 · 4 answers · asked by haylie(: 2

2007-11-10 10:58:03 · 2 answers · asked by theStudent 1

The 3,4,2and 10 are subscripts. How do I figure this out?

2007-11-10 10:57:20 · 1 answers · asked by jess r 1

Suppose f(x)=x+2 and g(x)=square root x.
Determine the domain of the composite function g(f(x)).

2007-11-10 10:56:26 · 4 answers · asked by triggaman88898 1

Supppose the bisector of an angle divides the angle into two angles, each of which is 15 degrees less than the complement of the angle.What is the measure of the angle?

2007-11-10 10:50:52 · 10 answers · asked by Mike m 1

11n-6=9n ? show how u got it plz!! another is 4b+17 =b+23

2007-11-10 10:42:28 · 4 answers · asked by Anonymous

I have a maths question this is my weakness.

march rain fall 92 mm
for the whole of march an open toped container was left to collect water. The box was 220 mm long, 155 mm wide and 210 mm high. what was the total volume of water in the container at the end of the month. Who ever works this out could they please show their working. thanx

2007-11-10 10:38:47 · 2 answers · asked by Anonymous

2007-11-10 10:37:30 · 4 answers · asked by Val K 2

9x^2 + 6x - 8

How do you complete the square?

2007-11-10 10:26:23 · 5 answers · asked by Cheat Sum 4

please help!

2007-11-10 10:11:49 · 7 answers · asked by Anonymous

the result of multiplying the sum of the first n positive even integers by 4 and then adding 1 is always a perfect square.

2007-11-10 09:43:11 · 4 answers · asked by Anonymous

Can you help me prove this?

If a_n, b_n are real sequences, a, b are in R, a_n + b_n -> a +
> b, and a <= lim inf a_n, b <= lim inf b_n, then a_n -> a and b_n -> b.
.

thank you

2007-11-10 09:27:57 · 2 answers · asked by Edson 1

When I tried to simplify it came out to 3x=3x... please help! Is that the identity something...........? I need this for my 8th grade Algebra class! Thank you so much.

2007-11-10 09:26:55 · 5 answers · asked by Anonymous

Ex. If I had 2750 feet, how could I convert that into 1/72 scale?

2007-11-10 09:11:43 · 2 answers · asked by the klip 1

i have a problem to solve for my math class that's related to the logistic equation. I've been unable to come up with a solution:

can you find a number Y(1) such that
Y(1)=Y(3)=Y(5)=...=Y(2n+1)=...
with Y(n+1)=4Y(n)(1-Y(n))?

thanks for the help!

2007-11-10 09:00:41 · 1 answers · asked by Anonymous

There are 4 dice and 2 players are involved in a game. The first player selects 1 of the 4 dice and the second player selects 1 of the next 3. Each player rolls his die and the higher # wins.

The first player selects a die with four 4's & two 0's...he wins 30 tokens every time he wins. Which of the next 3 dice should the second player choose?
-die with all 3's
-die with four 2's & two 6's
-die with three 5's & 3 1's

Why?

2007-11-10 08:54:10 · 4 answers · asked by Anonymous

An advertising agency claims that 75% of all doctors recommend aspirin over any other pain reliever. If this claim is indeed valid, what is the approximate probability that in a sample of 96 doctors who were interviewed at random and who respond independently less than 60 will recommend aspirin? If in such a survey you actually found out that 58 out of 96 preferred aspirin, what would you think about the genuine nature of the claim? (The first question I already know, but the second I am having trouble with, please help!)

2007-11-10 08:49:00 · 2 answers · asked by shambhalachick 1

i need help =[
okay so it's


\5/64x^10 / \5/2x^3

the \/ is the square root sign and the / is a division bar..

basically, it is 64x^10 to the 5th root divided by 2x^3 to the fifth root.

my question is, how do you rationalize the denominator? i know you multiply it by x^2 but do you do anything to the two?

thanks so much

2007-11-10 08:37:21 · 2 answers · asked by kim 2