Mathematics - 4 November 2007

you can use commutative property _ + 9 = 6


but you cant answer -3

may Prof ask dis to us..

maybe any other formula can works but i really dont get it!

thankz guyz!

2007-11-04 23:54:03 · 11 answers · asked by rhey r 1

I WANT TO COPARE THE WORD LRNGTH BETWEEN TABLOID& BROADSHEET

2007-11-04 23:28:37 · 1 answers · asked by Supun N 1

On the last ship raid, Seamus bagged twice as many gold coins as Davey, but they each gave 24 to Horatio , which left Seamus with five times as many coins as Davey. How many coins did Seamus have at the start?

2007-11-04 23:11:28 · 15 answers · asked by Jammy 1

2007-11-04 22:38:29 · 2 answers · asked by han 1

Suppose that f(x) is an even function, and g(x) is an odd function. Consider the function h(x) = (f ◦ f)(x) + (f ◦ g)(x) + (g ◦ f)(x). Is h(x) odd, even or neither?

2007-11-04 22:36:45 · 3 answers · asked by Simon J 1

These are the values:

0 | 1 | 2 | 3 | 4 | 5 | 6 |
4 | 6 | 7 | 7.5 | 7.75 | 7.875 | 7.9375 |

(Excuse my crappy table making skills!)

The top row is X and the bottom is Y, the pattern will continue. I think the equation will be an exponential one but I am unsure.

Thank you for your help.

2007-11-04 21:37:50 · 3 answers · asked by Sam L 2

correct me if I am wrong.

2007-11-04 21:29:28 · 9 answers · asked by Anonymous

I am so surprised I have been trying for hours! have to give test
so, I figured since i cant stay up all morning due to promos in a few hours I felt it be best to ask the best ...thanks

z+y+x=6
2z+y=4
2x+y=8
am I correct please help! I am serious times running out

2007-11-04 21:03:43 · 2 answers · asked by aprilmacfadden 3

4x^2+ 4y^2 + 4z^2 - 8x + 16y=1

2007-11-04 20:03:47 · 3 answers · asked by Anonymous

...that lies inside the first curve and outside the second curve

r= 1-sin
r=1

2007-11-04 19:33:51 · 1 answers · asked by Anonymous

How do I find x?

2007-11-04 19:05:11 · 9 answers · asked by Anonymous

with a compass?

2007-11-04 18:54:57 · 10 answers · asked by Anonymous

I'm relearning highschool mathematics, and teaching myself higher level mathematics, and I spent a few minutes on this question but got stuck at the point of determining cos(6b) = ? Please look at the question below, and correct my mistakes and determine the final answer. I'm curious. I have no homework to turn in, but I'd love to know how this works.


Thank you!


http://answers.yahoo.com/question/index;_ylt=AoQp4icTYHdSMTAd_9Lei3bty6IX;_ylv=3?qid=20071104012803AAnkttq&show=7#profile-info-uDLXZyxAaa

2007-11-04 18:48:46 · 2 answers · asked by rachelesse 3

What is the derivative of 1+2x/(1+x^2)
The answer does not accord with my normally flawless mental computations...plus I don't see how it could have been arrived at...its 2-c/(1+x^2)^(3/2)...
Huh..?
First principles, anyone..?

2007-11-04 18:33:43 · 2 answers · asked by c0cky 5

I need help deriving the following equation for covariance:

cov(X1,X2)=E((X1-mu1)(X2-mu2))

I think I can use the equation cov(X1,X2)=E(X1X2)-E(X1)E(X2) in the derivation if needed.

2007-11-04 18:16:20 · 1 answers · asked by dsaf f 2

COMPUTERS

2007-11-04 18:16:13 · 1 answers · asked by zia 1

In a yoyo shop, they found that they sold 1500 yoyos per week with a price of $2.50, but 2500 yoyos a week with a price of $2.00. Their fixed costs per week for the startup loan are $2000 and their cost to make each yoyo after paying that is $1.00
a) Find the demand function (price function)
b)Find the cost equation
c) Find the revenue equation
d) Find the profit equation
e) Find the price they should charge to maximize their weekly profit

2007-11-04 17:39:12 · 0 answers · asked by Puka 1

Use the remainder theorem to find the remainder when 1x^3 - 3x^2 - 9x + 50 is divided by 2x + 7. Round your answer to the nearest hundredth.

2007-11-04 17:32:21 · 2 answers · asked by Anonymous

I also need to know what number is representing each leg of the triangle. Is #x the smallest leg or #y, or vice versa. Here's the problem:

Consider an angle θ in standard position whose terminal side has the equation y = -5x, with x ≤ 0. Find the exact values of sin θ, cos θ, and tan θ.

I don't really need any explanations except for the leg part I noted above. All I need is to see the whole problem worked out and I'll get it. Our book is really vague, but I learn by seeing, so if you can help with the whole thing it'll be appreciated, and of course I'll reward you, serious people only please.

2007-11-04 17:21:17 · 3 answers · asked by Brick Top 1

Consider the function f(x)=X^3-2X^2-16X+16k, where k is an unknown constant. If 2 is a zero of f, find two other zeroes. Help please?!?! Im up 1 in the mornin tryin to do these stupid polynomial questions. Thank you.

2007-11-04 17:18:46 · 1 answers · asked by Nerro 2

This problem stumped me, so I'm asking for help:

A rectangle is inscribed between the x-axis and the parabola (36-x^2) with one side along the x axis

find the maximum area of the rectangle and write a function of x for the area

2007-11-04 17:18:10 · 2 answers · asked by Anonymous

-2x + y + z = - 2
5x + 3y + 3z = 71
4x - 2y = 1

i know theres many type of way to solve it
but im still reallie confused if im doing it rite ><
any suggestions on making it easy?
or wut do u recomend that is easy way to solve it?

2007-11-04 17:16:58 · 2 answers · asked by Anonymous

Jerry spent 2.5 h biking up Mount Lowe, rested at the top for 30 min., and biked down in 1.5 h. How far did he bike if his rate of ascent was 3km/h less than his rate of descent? (plz show ur work. I'm having trouble with this problem. Plz and thnx a lot!)

2007-11-04 16:54:00 · 3 answers · asked by Wendy F 1

Thanks for answering! :)

2007-11-04 16:53:44 · 3 answers · asked by Pretty 'n' Pink! 1

∫ [x^9 sqrt(x^5 - 3) ] dx

So this is what i did

∫ [x^9 sqrt(x^5 - 3) ] dx = ∫ [x^5 * x^4 * sqrt(x^5 - 3) ] dx

let u = x^5 then du = 5x^4 dx

∫ u sqrt(u - 3) du

Now what? stuck.... Do substition again?

2007-11-04 16:52:51 · 4 answers · asked by Anonymous

2007-11-04 16:52:15 · 10 answers · asked by Pretty 'n' Pink! 1

2007-11-04 16:51:28 · 8 answers · asked by Pretty 'n' Pink! 1

using the equations?

2007-11-04 16:50:30 · 1 answers · asked by hanye812 1

Thanks for answering!

2007-11-04 16:50:29 · 5 answers · asked by Pretty 'n' Pink! 1

2007-11-04 16:49:32 · 5 answers · asked by Anonymous