Science & Mathematics - 29 November 2006

How would you evaluate this expression?

cos^(-1)(-squareroot3/2)

2006-11-29 14:10:34 · 2 answers · asked by Jordan 1 in Mathematics

2006-11-29 14:09:06 · 2 answers · asked by The Apostle 2 in Engineering

Of course jewelry we can live without but do you have anything else? A suggestion? but if you're going to tell me to search it don't answer because i tried.

2006-11-29 14:08:25 · 6 answers · asked by pixelperson93 3 in Earth Sciences & Geology

2006-11-29 14:06:59 · 4 answers · asked by koolbreeze 1 in Physics

2006-11-29 14:06:52 · 9 answers · asked by stephanie a 1 in Physics

Solve the equation for x by first making an appropriate substitution, such as u = ex.
5e^2x - 16e^x + 3 = 0

2006-11-29 14:06:32 · 5 answers · asked by OO 1 in Mathematics

2006-11-29 14:05:53 · 4 answers · asked by caprice p 1 in Chemistry

We already know that rectangle has segment X and Y.

Area is 108 square units and the perimeter is 42 units.

What's the measure of X and Y

How to find the algebraic answer?

2006-11-29 14:04:15 · 6 answers · asked by 10_JaVo 2 in Mathematics

albert einstein said that it doesnt exist. i dont really get it. can u explain it to me? Thank u all for the answers u give me

2006-11-29 14:03:59 · 14 answers · asked by Anonymous in Earth Sciences & Geology

2006-11-29 14:03:13 · 3 answers · asked by blakely 1 in Mathematics

Which star is further along in its life cycle- Antares (a red supergiant) OR the sun? How do you know?

2006-11-29 14:02:25 · 4 answers · asked by fanta chic 2 in Astronomy & Space

can relate to drugs or polymers

2006-11-29 13:59:59 · 0 answers · asked by rhodebxl 1 in Chemistry

Find the y-intercept of the normal to the parabola y=x^2 at the point (a,a^2), where a =/= 0.

I need to check an answer. Here's: what I did:

y'=2x, so slope of normal line is -1/2x
Plug in a so the slope is now -1/2a
Equation of the normal line is now y = -1/2ax + b
Plug in the point (a,a^2) so equation is now a^2 = -1/2a(a) + b
Solve for b, so b = 3/2a^2

Did I do that right?

BTW would the limit of that intercept as a -> 0 be equal to 0? You just plug the 0 for a right?

2006-11-29 13:59:06 · 2 answers · asked by Anonymous in Mathematics

A * [(B + C)(D - E) - F(G*H) ] / J = 10

Knowing that each variable is a unique, single-digit, nonzero number, and that C - B = 1, and H - G = 3, what is the number ABCDEFGHJ, where each letter is a digit? For example, if A = 4, B = 2, and C = 7, ABC would equal 427.


Anyone know the answer? Math is my worst subject and I need help!! :P

2006-11-29 13:58:05 · 3 answers · asked by Anonymous in Mathematics

Given the following rational function:

4x^2-10x+6 / -2x+3

Find equations for vertiacl and horizontal asymptotes.

2006-11-29 13:56:48 · 2 answers · asked by love_never_wanted_me 1 in Mathematics

2006-11-29 13:55:59 · 3 answers · asked by patelfour 1 in Biology

2006-11-29 13:51:41 · 2 answers · asked by windbags49 1 in Earth Sciences & Geology

2006-11-29 13:51:06 · 9 answers · asked by jim greco 1 in Weather

Anyone know how to determine the fragment size in base pairs? Then determine the percentage error with the experiment? I'm stuck.

2006-11-29 13:50:51 · 1 answers · asked by Love 2 in Chemistry

2006-11-29 13:49:54 · 2 answers · asked by Melissa B 2 in Earth Sciences & Geology

I saw a picture of it in the middle of the ocean somewhere and have no idea where it is located.

2006-11-29 13:47:27 · 3 answers · asked by JANET M 1 in Geography

2006-11-29 13:46:18 · 3 answers · asked by Anonymous in Chemistry

2006-11-29 13:45:47 · 3 answers · asked by Richard L 1 in Physics

2006-11-29 13:39:36 · 15 answers · asked by abigail<3 1 in Astronomy & Space

2006-11-29 13:39:26 · 6 answers · asked by Anonymous in Medicine

2006-11-29 13:36:01 · 4 answers · asked by Anonymous in Weather

The clock time changes depending on the energy that is used to measure it ,didnt Frank Harris prove that it in impossible to have a moving clock without affecting the energy required for its measurement?

2006-11-29 13:35:58 · 3 answers · asked by goring 6 in Physics

If so please explain theorly, and precisely. I need urgent help, so pls. answer. Thanks!

2006-11-29 13:35:36 · 4 answers · asked by gabriela12500 1 in Engineering

Idetical forces act for the same length of time on two different masses. The change in momentum of smaller mass is?
a. smaller than that of larger mass, but not zero
b.larger than the change of momentum of the larger mass.
c. equal to the change of momentum of the larger mass

2006-11-29 13:34:54 · 5 answers · asked by Anonymous in Physics

Can someone explain the Laws of Superposition and Cross-cutting?
I don't understand it.

2006-11-29 13:33:05 · 2 answers · asked by bunywars5000 3 in Earth Sciences & Geology