Mathematics - 29 August 2007

Can someone give a detailed reason why? - any why the letters d?....any historical/ etymological background info would be great too...

2007-08-29 03:31:37 · 9 answers · asked by Anonymous

A.) how far can you travel in 75 minutes?

B.) how many minutes would it take to travel 10 miles?

2007-08-29 03:29:04 · 7 answers · asked by brunette12x 1

This is the graph of the functions: http://img2.freeimagehosting.net/image.php?021c196fae.jpg

Which method is better to use the integral, from top - bottom dx, or right - left dy? Any hint is appreciated, even to find the upper and lower limits, thanks!

2007-08-29 03:25:29 · 3 answers · asked by Jorm 3

If anyone can give me any links to articles or any information about how to construct a supersingular elliptic curve in Fq then that would be extremely helpful - thanks!

2007-08-29 03:18:33 · 1 answers · asked by Anonymous

1. find the reciprocal of -8/7.
what is reciprocal? is it the same thing as additive inverse?

2. x[(2)(x)] is (2x)(x^2) right?

3. simplify:
[6(x-3)+3x]-2{3[2(2y-4)]-5}

thank you soo much!

2007-08-29 03:01:43 · 8 answers · asked by Anonymous

2007-08-29 02:44:18 · 9 answers · asked by Anonymous

2007-08-29 02:35:00 · 8 answers · asked by Anonymous

Thanks :)

1. The joint density for x and y is given by f(x,y) = 1/n2, x = 1, 2, 3, ..n, y = 1, 2, 3, ..n where n is a positive integer
a. Verify that f(x,y) satisfies the conditions necessary to be a density
b. Find the marginal densities for x & y
c. Are x & y independent?

3. Let X denote the temperature (oC) and let Y the time in minutes that it take for the diesel engine on an automobile to get ready to start. Assume that the joint density for x & y is given by f(x,y) = c(4x+2y+1), 0 ≤ x ≤ 40, 0 ≤ y ≤ 2
a. Find the value of c
b. Find the probability that on a randomly selected day, the air temperature will exceed 20oC and it will take at least 1 minute for the car to be ready to start
c. Find the marginal densities for x & y
d. Are x & y independent?
e. Find the probability that in a randomly selected day it will take at least 1 minute for the car to be ready to start

Thanks again! :)

2007-08-29 02:28:21 · 1 answers · asked by infinitelimits 2

this is the problem:

Simply |-32|

2007-08-29 02:25:36 · 13 answers · asked by Anonymous

1.convert to factorials
2*4*6*8*10
2. what is the largest integer n such that 33! is divisible by 2^n

2007-08-29 02:21:31 · 2 answers · asked by jr 2

wat is/are the properties of the equation y=axsquared + c?

2007-08-29 02:15:25 · 2 answers · asked by Anonymous

2(radical sign over 3) x 5 (radical sign over 6)

2007-08-29 01:58:05 · 5 answers · asked by : ) 2

2007-08-29 01:49:57 · 2 answers · asked by Tiger Potter 1

I have developed a method for differentiation on Computers or calcualtors. What I find great about my method is it works faster and more accurate than fx 991MS. But I don't know how to earn something by this. Is there any other method faster and more accurate than mine, I would like to know about it?

2007-08-29 01:13:36 · 5 answers · asked by abhishek jhathegreati_love_india 2

quart of oil, but only about one and one/third cup will go in.

2007-08-29 01:05:00 · 7 answers · asked by Bluebeard 1

3rd root of 108 - 3rd root of 32

3V108-3V32

The V's are the square root symbols and the 3's are actually small subscripts representing the 3rd root.

Please help!

2007-08-29 01:02:19 · 4 answers · asked by Anonymous

2007-08-29 01:00:11 · 20 answers · asked by whisper2ya 2

2007-08-29 00:59:26 · 11 answers · asked by whisper2ya 2

2007-08-29 00:58:49 · 4 answers · asked by whisper2ya 2

2007-08-29 00:38:00 · 5 answers · asked by ezergz 1

(x^3a+1)/ (y^2b-3) * (y^3b+4)/ (x^2a-1)

2007-08-29 00:04:04 · 2 answers · asked by Anonymous