Science & Mathematics - 14 January 2007

Please show all steps....

2007-01-14 17:10:47 · 8 answers · asked by Anonymous in Mathematics

sumtimes u get dis feeling of deja vu....lik uve been der before or been in a similar situation before....when u kno 4 sure dat u hav never been to dat place....vat is d reason 4 dat???

2007-01-14 17:08:21 · 7 answers · asked by anusha 1 in Other - Science

A Man throws an object a certain distance, it stops momentarily and returns. It is not a boomerand and doesnt touch anything, Explain.

2007-01-14 17:07:27 · 8 answers · asked by Saedii 4 in Physics

When you have a matrix in reduced row echelon form and you get the result.....

1 0 0 | 2
0 1 0 | 4
0 0 0 | 0

Does this mean that there are infinitely many solutions because of 0 = 0?

Please note that the last column in the matrix is the solution, i.e. Ax=b

Thanks a bunch

2007-01-14 17:04:31 · 4 answers · asked by Anonymous in Mathematics

For a Polynomial Regression ^2, Microsoft Excel returns the following formula for the data listed below: y=0.0841x^2-0.8481x+143.09

As for the data below, the numbers 10 to 1 represent my independent variable (x) and the corresponding values represent my data. My most recent data value is 143.24. Could you please explain how the equation was derived. What does .0841, .8481 and 143.09 represent?

10 143.24
9 142.16
8 141.54
7 141.07
6 141.19
5 140.54
4 141.67
3 141.37
2 141.62
1 142.21

2007-01-14 17:01:58 · 5 answers · asked by Anonymous in Mathematics

2007-01-14 16:52:47 · 5 answers · asked by megashino 3 in Astronomy & Space

2007-01-14 16:50:15 · 15 answers · asked by nisha n 1 in Astronomy & Space

Can someone please explain to me how to do this probelm. A student got 44 answers correct on a test with 55 questions. What percent was not correct?? Please and thanks you to anyone who can tell me

2007-01-14 16:47:35 · 10 answers · asked by Anonymous in Mathematics

Storms are getting stronger by the season due to the effects of rapidly changing weather conditions. How do we reverse Global Warming so that our children's children will not have to live in a volatile environment?

2007-01-14 16:43:12 · 13 answers · asked by nova_rain 2 in Weather

2007-01-14 16:42:23 · 16 answers · asked by Jessie 1 in Astronomy & Space

2/15 + 8/21 =
9/16 - 1/12 =

2007-01-14 16:42:14 · 5 answers · asked by imalostcause..searching569 2 in Mathematics

i need to know the process on how to do it

2007-01-14 16:39:15 · 12 answers · asked by JO 2 in Mathematics

I remember learning it in high school biology, but I cannot for the life of me remember. It's been driving me nuts all day.

2007-01-14 16:37:18 · 6 answers · asked by Quiet Amusement 4 in Botany

2007-01-14 16:35:41 · 15 answers · asked by BennyCA 1 in Astronomy & Space

2007-01-14 16:33:11 · 7 answers · asked by Tim L 1 in Weather

I know this has something to do with the reflective nature of the speed limit sign, but can someone please give me the direct cause and effect that creates this phenomenon?

2007-01-14 16:30:33 · 2 answers · asked by kilgoretrout912 2 in Physics

2007-01-14 16:30:33 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-14 16:27:36 · 3 answers · asked by rose_hedrick 1 in Mathematics

What does this equal to???

2007-01-14 16:27:04 · 6 answers · asked by Anonymous in Mathematics

Is there any evidence that proves alternate universes exist? I watch allot of Discovery channel, and whenever a show comes on about physics, they always bring up the theory that every decision that we make that has multiple outcomes creates multiple universes, one for each outcome. This seems flawed to me, because just now I decided not to hit myself in the head with a brick, is there really a universe out there where I did? If it seems like I'm asking allot of dumb questions it's because I have no concept whatsoever on how physics work, but I'm very interested in it.

2007-01-14 16:26:06 · 11 answers · asked by jedi1josh 5 in Physics

2007-01-14 16:25:00 · 2 answers · asked by paintballa 1 in Engineering

2007-01-14 16:24:18 · 9 answers · asked by Ibanez TS9 2 in Astronomy & Space

ok. you know how ants come from queen ants and that there aren't like other queen ants. where do the queen ants come from? queen ants only make like worker ants, but where do the queen ants come from?

2007-01-14 16:23:25 · 3 answers · asked by John 1 in Biology

I found these while taking down the tree. They were up to 1 1/2 inches long, light to medium green, with black stripes (made up of dots) running their length. I am worried that they might do damage to the wood in my house. Does anyone know what they might be?

2007-01-14 16:17:55 · 5 answers · asked by rolomygirl2006 1 in Zoology

How do I factor this:

1x^3 - 4x^2 + 8x - 8 = 0

So far, I am only able to get:

(1x^3 - 4x^2) (+ 8x - 8) = 0
1x^2 (1x - 4) + 8(1x - 1) = 0

The two sets of parenthesis don't match which is where I am stuck. Anyone please help!! Thanks.

2007-01-14 16:16:58 · 10 answers · asked by Avigail 3 in Mathematics

2007-01-14 16:12:57 · 1 answers · asked by anila_thomas 1 in Biology

Which state are you in...IF you feel comfortable answering?

2007-01-14 16:12:33 · 23 answers · asked by da dude 4 in Weather

Well i know there will be lots of theory out there. The so called scientific theorys. FOREVER wow thats alot of space what could hold that much. I think it ends some where. If you go into a staight line you wont end up back here. But where i think somebody knows where are you from my little ET.

2007-01-14 16:12:12 · 11 answers · asked by Anonymous in Astronomy & Space

Its for math ineed to know
If CM=3x+6 and CE= x+2 then what is x?
http://i15.photobucket.com/albums/a372/cowqtie101/geometryproblem.jpg

2007-01-14 16:11:44 · 4 answers · asked by Anonymous in Mathematics

2007-01-14 16:08:58 · 24 answers · asked by Anonymous in Mathematics