Mathematics - 4 September 2006

2006-09-04 09:33:50 · 6 answers · asked by TONY 2

2006-09-04 09:26:28 · 10 answers · asked by kfff s 1

Or subtended? My stupid trig book uses this and please don't give me the dictionary term. Explain it in your comprehensive words. Also explain this quote from the book "One radian is the measure of the central angle of a circle SUBTENDED by an arc equal in length of the radius of the circle"

2006-09-04 09:15:05 · 8 answers · asked by jacksonxxrr 1

2006-09-04 09:14:44 · 12 answers · asked by TONY 2

2006-09-04 09:13:39 · 5 answers · asked by TONY 2

2006-09-04 09:13:10 · 5 answers · asked by TONY 2

that is by hand, no calculator. As in, if you have the number 1.8, how do you change it into a fraction?

2006-09-04 09:09:26 · 9 answers · asked by Anonymous

2006-09-04 09:07:57 · 21 answers · asked by janegirl921 1

{(x2) (3x3) }3
all the numbers after the x are the small squared numbers

2006-09-04 09:07:55 · 9 answers · asked by SurfingAirhead 2

I want do logistic regression analysis of my data but all my independent variables are categorical.

2006-09-04 08:54:17 · 1 answers · asked by Anonymous

2006-09-04 08:49:28 · 5 answers · asked by janegirl921 1

There are 1000 student and 1000 lockers.
The first student opens each of the 1000 lockers.
Second student closes every second locker.
Third student opens every third locker if it is closed or if it is open he closes it.
The fourth student goes to every fourth locker and if it is open he closes it, if it closed he opens it.
This process continues until it is completed by the 1000 students.

2006-09-04 08:46:24 · 5 answers · asked by Jeffrey Z 1

2006-09-04 08:17:35 · 13 answers · asked by Anonymous

2006-09-04 08:07:57 · 3 answers · asked by ND 1

x-2y=4
2x-3y=5

2006-09-04 08:03:28 · 3 answers · asked by mixed 1

Seriously, if you think you can, please take a crack at it. Funny and completely non serious answers are more than welcome.

2006-09-04 07:51:11 · 12 answers · asked by Brento! 4

Can you explain it to me? I was told this and it doesn't make any sense!

2006-09-04 07:38:23 · 22 answers · asked by Angie B. 2

2006-09-04 07:10:28 · 5 answers · asked by MLC 3

Sphere has the highest volume to surface area ratio. Which solid shapes have the least volume to surface area?

2006-09-04 07:05:07 · 17 answers · asked by Anonymous

I know that is a special kind of field, but I don't know what it is or how it is defined.

Oh: and I might be missing another of the sets, one which contains the Cayley Numbers.

2006-09-04 06:53:38 · 2 answers · asked by serengetimonster 1

Having trouble figuring the order of operations. Do brackets act as multiplication signs like parentheses do? I have the answer, but cannot, for the life of me, figure out the steps.

2006-09-04 06:50:57 · 14 answers · asked by Anonymous

2006-09-04 06:46:17 · 3 answers · asked by mehrazin 1

The problem is, well, I don't really know what pdf means.

The pdf of X is f(x)=kx^2 for 0 < x < 2 and f(x)=0 elsewhere.

Find the value of k.

I think what I have to do is find the value of k that yields a parabola that does... something. But I don't really know. Help?

2006-09-04 06:37:19 · 6 answers · asked by Anonymous 3

2006-09-04 06:29:35 · 8 answers · asked by Anonymous

at noon, car A is going north at 30mph and is located 20 mi northof car B. car B is going west at 50mph. what is the distance between the cars at 12:45 pm?

would i need to use the pythagorem theorem and the distance formual to solve this? thanks for the help, i really appreciate it.

2006-09-04 06:22:33 · 7 answers · asked by shih rips 6

rectangular swimming pool is 15 ft by 50 ft has a 6 ft wide sidewalk around it. how much fencing would be needed to enclose the sidewalk? and what is the area of the sidewalk?

what other formuals would i need beside a=lwh? thanks for the help.

2006-09-04 06:20:19 · 8 answers · asked by shih rips 6

a 0.25 cubic inch of paint is painted onto a circular piece of paper w/ a diamter of 20 inches. what is the thickness of the paint on the paper?

do i need to use the diameter = 2r to figure out the thickness?
thanks for the help.

2006-09-04 06:17:43 · 7 answers · asked by shih rips 6

niagara falls has an avg of 212000 cubic ft of water passing over it each sec. is this rate more or less than 10 cubic ft per year?

i know i would have to convert using 1 cubic mile = 5280 cubic ft.
but after that, what's the next step? thanks for the help.

2006-09-04 06:15:07 · 2 answers · asked by shih rips 6

i know how to use substitution but not elimination can you help please?


5x-4y=14
3y+3x=3

2006-09-04 05:43:19 · 16 answers · asked by Anonymous

I understand that the expected value of the mean of a random variable equals the "true" mean of the variable, but how do you show that with rules of expectations? I also need to show the same thing for the variance of x-bar equals (sigma^2 / n).

2006-09-04 05:41:58 · 3 answers · asked by Justin L 2