Mathematics - 6 September 2006

N = number of balls initially in a basket.
x = number of balls picked from the basket, each in turn, without replacing them.
Probability of picking a particular ball out of a full basket = 1/N.

Question:

1. There are N balls in the basket to begin with.

2. You pick "x" balls

3. You then put all the balls back, and again pick "x" balls

What is the probability that you have picked, in step 3, a ball you did not pick in step 2?

Thanks a lot for any answers.

2006-09-06 04:08:31 · 8 answers · asked by Robby 2

Find the equation of the line satisfying the given condition Throught (-5,7), perpendicular to y=-2

Please help I am so lost

2006-09-06 03:46:59 · 3 answers · asked by enimus 1

Have to produce printf statement by using below equation.
x, y, z are integers and a, b ,c are lengths, both previously defined in my code into a printf statment such that printf produces in form:

x*a + y*b +z*c = total length used

so output would look like

0*65 + 0*50 + 1*35 = 35

2006-09-06 03:37:14 · 2 answers · asked by Anonymous

f(x) = (x - V(1 + x²))^4 + (x + V(1 + x)²)^4
Calculate f(x), please.
I can't find the solution, and it annoys me much, it is NOT a homework, but I found it on a website et decided to take up the challenge. Thanks.

2006-09-06 03:23:02 · 4 answers · asked by 1 1

2006-09-06 03:08:50 · 2 answers · asked by goring 6

2006-09-06 03:05:10 · 16 answers · asked by Anonymous

prove that (sin a - cos a - 1)/(sin a +cos a - 1) = - (cos a + 1)/sin a

PLEASE HELP, I'm so overloaded with homework, I cannot focus on this easy question... please help...

2006-09-06 02:56:32 · 3 answers · asked by lune_ellise 3

2006-09-06 02:33:46 · 15 answers · asked by pooh bear 2

2006-09-06 01:52:53 · 4 answers · asked by Anonymous

2006-09-06 01:30:12 · 10 answers · asked by saurav jain 1

Solve for the antidifferential:
∫[t^(z - 1) e^(-t)] dt

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2006-09-06 01:23:15 · 3 answers · asked by kevin! 5

I got 2 i want to know if its correct

3
9234/[3*3(1*8 )


the 3 over the 8 means to the thierd power * means multiply / means divide

2006-09-06 00:52:32 · 10 answers · asked by Debate 1

lol... you ask the question... -math- for example...
you put the equation up and ask for the answer.... my ? to you is...
will all the multiple answers you get... some way off i might add... HOW DO YOU KNOW IF YOU GOT THE RIGHT ANSWER IF YOU DON'T WORK OUT THE PROBLEM YOURSELF ? and if you have to work out the problem to see which is the right answer... WHY DIDN'T YOU JUST DO IT TO BEGIN WITH???????

2006-09-06 00:41:01 · 8 answers · asked by mouse 3

...............3
(3/3)+3*(3 - 3)

and number over another number means to that power and * means multiply and / mean divide

2006-09-06 00:29:19 · 18 answers · asked by Debate 1

Simplify to make a good equation for

S = ∑ (k = 1 to n) { [a_1 + d · (k - 1)] [α_1 · r ^ (k - 1)] }

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2006-09-06 00:07:49 · 2 answers · asked by kevin! 5

2006-09-06 00:05:35 · 18 answers · asked by joanna 1

Given
x + 10000 = x + 10001;

Find the value of
(1/2)^x

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easy...
^_^

2006-09-06 00:03:31 · 10 answers · asked by kevin! 5

2006-09-06 00:01:30 · 12 answers · asked by praveena k 1