Science & Mathematics - 29 August 2007

I'm taking calculus this year and I've already forgotten how to factor from College Algebra! Please help!

2x^2+7x-15

Thanks in advance!

2007-08-29 05:09:32 · 10 answers · asked by Lindsey G 2 in Mathematics

2007-08-29 05:06:35 · 3 answers · asked by Mr Answerman 7 in Other - Science

-some are made fropm one type of atom
-some contain several tyoes of atom
-some are made from more than one element, but theses are always found in a fixed ratio
-those made from more than one element retain the properties of those individual elements?

2007-08-29 05:02:21 · 5 answers · asked by cutiepieee♥ 1 in Chemistry

If I have all all the angle measurements how do I find the side length measurements. for instance i have a 30 60 90 triangle with the short side is 9 ft long. How can i use trig to find the other two sides. I know SOHCAHTOA but i am not sure how to use it.

2007-08-29 05:01:39 · 6 answers · asked by Anonymous in Mathematics

how to solve cubic equation of the form:
ax^3+bx^2+cx+d=0 ?

is there any fixed formula that can be used to solve ANY cubic equation?

2007-08-29 05:01:32 · 7 answers · asked by sh 1 in Mathematics

2007-08-29 04:58:47 · 2 answers · asked by Anonymous in Biology

Is the function f(x)=x+2 identical to the function
g(x)=((x^2)+5x+6)/(x+3)

Why or why not?

And what is the inverse of f(x)=(2x^3)+5

2007-08-29 04:54:28 · 6 answers · asked by Softball_Super_Star17 3 in Mathematics

what is 2 to the square root of 5 as a decimal

2007-08-29 04:54:25 · 3 answers · asked by BH 1 in Mathematics

2007-08-29 04:52:31 · 4 answers · asked by Anonymous in Mathematics

can any1 plz tell me the number of countries in whole world??
10 Points for who tell me the number..

2007-08-29 04:51:35 · 4 answers · asked by Hitman 2 in Geography

what are the differences between the effects of the Plutonium and Hydrogen bomb?

2007-08-29 04:48:29 · 3 answers · asked by Equal Animal 5 in Chemistry

To make a visible ''Psi ball'' how long to you have to be learning for?
Once you have done it along time, how many minutes would it take?
What will it look like?
Will other people be able to see it?
If it's strong enough can you stop solid objects passing through it?
Can it be dangerous if you throw it at someone?

2007-08-29 04:47:44 · 12 answers · asked by Ruhaif Tousis 1 in Parapsychology

A pyramid shaped tank completely full of water, 10 feet high off the ground. All surfaces are equalateral triangles. A small, insignificant hole is drilled in the top center, only to equalize pressure.

What is the volume of water?

What is the pressure on the bottom center of the tank (psi)?

What is the pressure on the bottom of the tank, 1 foot toward the center from the middle of the base of any wall?

What is the pressure on the inside wall, 5 feet off the ground?

2007-08-29 04:46:43 · 2 answers · asked by Anonymous in Mathematics

lol just a little dumb question

2007-08-29 04:44:58 · 5 answers · asked by Noles 4 in Physics

2007-08-29 04:42:50 · 3 answers · asked by Marvis B 1 in Zoology

2007-08-29 04:40:57 · 1 answers · asked by leoncita 2 in Mathematics

Three forces are applied to an object. Force 1 has a magnitude of 27.0 newtons (27.0 N) and is directed 30.0° to the left of the +y axis. Force 2 has a magnitude of 18.0 N and points along the +x axis. What must be the magnitude and direction of the third force 3 such that the vector sum of the three forces is 0 N? (force 3 points south of west)

2007-08-29 04:40:49 · 3 answers · asked by Anonymous in Physics

2007-08-29 04:40:41 · 7 answers · asked by leoncita 2 in Mathematics

How many times does a prototype need to fail testing before the design engineer gives up and moves on to something productive?

Does your answer in any way change if the engineer happens to be an insane female with mental issues?

2007-08-29 04:39:23 · 5 answers · asked by Anonymous in Engineering

2007-08-29 04:32:19 · 14 answers · asked by BALVINDER C 2 in Earth Sciences & Geology

1. uses flagellae to drive the excretion of waste material
2. uses blood pressure to drive the excretion of waste material
3. is called a flame cell when many flagellae attach to the cell body, with the nucleus central
4. is found mainly in animals without blood vessels, a coelom, or both


Select your answer from A-E below
A. 2 C. 1, 3, 4 E. All of 1-4 are correct
B. 2, 3 D. 1, 4

2007-08-29 04:31:56 · 2 answers · asked by Irosh Bandara 5 in Biology

How many legs all together??
remember each cat has 4 legs!

2007-08-29 04:24:56 · 28 answers · asked by DJ.Waania 1 in Mathematics

I'm doing a chemistry project and I can't seem to find what was the greeks experiment for discovering the atom.

2007-08-29 04:24:48 · 3 answers · asked by lexiss91 3 in Chemistry

totel travel time for me is 2 sec.

2007-08-29 04:24:31 · 5 answers · asked by Anonymous in Physics

I need help solving this math problem.

2007-08-29 04:20:09 · 11 answers · asked by Connor 1 in Mathematics

this is v to the 10th power divided by v to the 2nd power

2007-08-29 04:17:32 · 5 answers · asked by Darban & LaJuana M 1 in Mathematics

in space suits with limited mobility get the lunar rover, an electric car, even though only a 1/4 of its weight out of the lunar module on apollo 17? and where was it located... I cant see where it was on any of the plans of the LM descent stage

2007-08-29 04:17:10 · 5 answers · asked by Anonymous in Astronomy & Space

2007-08-29 04:11:55 · 5 answers · asked by Alix Witvoet123 1 in Mathematics

how to do it?

2007-08-29 04:11:43 · 3 answers · asked by archico01 1 in Mathematics

2007-08-29 04:09:10 · 4 answers · asked by gokulraj 1 in Physics