Science & Mathematics - 25 December 2007

1. x3 - 2x2 + 5x - 6 divided by x - 3


2. -2x4 - 6x2 + 3x + 1 divided by x + 1

3. x5 + 2x4 - 3x + 3 divided by x - 1

4. Find a polynomial of degree three that when divided by x - 2 has a remainder of 3. You will really have to think on this one. Hint: Work backwards!

2007-12-25 08:33:28 · 2 answers · asked by Anonymous in Mathematics

2007-12-25 08:31:11 · 3 answers · asked by Katerina 1 in Mathematics

2007-12-25 08:29:01 · 4 answers · asked by Luis J 1 in Mathematics

I saw some episodes on the history channel. Are aliens real? Please answer and thank you!

2007-12-25 08:22:59 · 19 answers · asked by Anonymous in Astronomy & Space

It's snowing here in Seattle. Merry Christmas, Everyone!

2007-12-25 08:19:03 · 65 answers · asked by ♥anonymous♥ 3 in Weather

Hey can someone help me to solve this problem? The question is if an incline has a ideal mechanical advantage of 4 and the pyramid is 15 meters tall, how much of an angle would a worker have the incline in order for him to reach the top. I cant seem to wrap my head around it :( any help would be appreciated.

2007-12-25 08:14:59 · 4 answers · asked by RICARDO S 2 in Physics

2007-12-25 08:12:07 · 9 answers · asked by kh 93 2 in Mathematics

2007-12-25 08:08:50 · 4 answers · asked by f50 1 in Engineering

I love books like those of Atul Gawande (Complications) and Katrina Firlik (Another Day in the Frontal Lobe. Can you recommend other similar tomes? (I've already read all of Gerome Groopman's books as well.)

2007-12-25 08:08:07 · 1 answers · asked by quirkyfunnyone 1 in Medicine

2007-12-25 08:06:35 · 4 answers · asked by jerryonhigh 1 in Geography

But Holy water is different then any other drop!

2007-12-25 08:06:13 · 9 answers · asked by CHAZ 2 in Earth Sciences & Geology

I have trouble believing that this is possible. I found this link on some web page ( http://www.xolllab.com/ ) they claim to have invented x-ray glasses. I honestly don’t know anything about the technology that would be required for something like this. I do know that with some camcorders it is possible to see through things when the camera is in night vision mode. So are the glasses real or not? What do you think?

2007-12-25 08:00:49 · 5 answers · asked by Dan N 1 in Engineering

Did I just make this up? It was a long time about but I think it was a drummer for Poco, and there was speculation that he may have been killed because of some sort of classified information he had about "gravity waves" whatever those are.

2007-12-25 07:53:25 · 4 answers · asked by DeFreeze 4 in Physics

compare with Edison's?

2007-12-25 07:53:01 · 10 answers · asked by Anonymous in Engineering

Why not use the earth's core heat / volcanoes etc. as "fuel" for making steam to electricity. or a more direct use of the heat.. which is alreay there-- no nuclear eneergy needed.. just the volocano heat etc.

2007-12-25 07:48:44 · 8 answers · asked by msilv9009 1 in Earth Sciences & Geology

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Algebra%20II/303q/Picture14.png

2007-12-25 07:35:49 · 5 answers · asked by kim L 1 in Mathematics

Have you ever thought about the fact that you did not exist before you were conceived and then born into the world and that you have come into existence from mere nothingness?
Have you ever thought about how the flowers you see in your living room everyday come out of pitch black, muddy soil with fragrant smells and are as colourful as they are?
Have you ever thought about how mosquitoes, which irritatingly fly around you, move their wings so fast that we are unable to see them?
Have you ever thought about how the peels of fruits such as bananas, watermelons, melons and oranges serve as wrappings of high quality, and how the fruits are packed in these wrappings so that they maintain their taste and fragrance?
Have you ever thought about the possibility that while you are asleep a sudden earthquake could raze your home, your office, and your city to the ground and that in a few seconds you could lose everything of the world you possess?

2007-12-25 07:29:54 · 2 answers · asked by Anonymous in Other - Science

1. 4^ (√(X+1)) = 3 ^(3X+2)

2. (log x(<--base) 10) (log 48-log 3)

3. 4 ^(-2log 4 (<-- base)3)

4. a ^(4log a(<--base) x)

5. log (1-x^3)+ log (1+x +x^2) - log (1-x)

6. solve for A
1+ log (AB)= log C

7. solve for B.
A= log 3B - log C

8. 2 log 2(base) (x+2)-log 2(base) (3x-2)=2
show me all your work plz its urgent thank you

2007-12-25 07:27:56 · 3 answers · asked by Etwetwe E 1 in Mathematics

2007-12-25 07:25:46 · 4 answers · asked by nidabsyed 1 in Botany

2007-12-25 07:19:41 · 4 answers · asked by Caysie101 5 in Zoology

how many are there in the universe?

2007-12-25 07:08:09 · 9 answers · asked by Carolina L 2 in Astronomy & Space

2007-12-25 06:50:20 · 18 answers · asked by Destructor 1 in Mathematics

I'm not talking science fiction. I realize that our current propulsion capabilities make it impossible to travel there in one lifetime. but does anyone think that we have the capability to create a self sustaining colony vessle that will serve several generations and will travel to the nearest "earth like" planet. Do we have the energy resources, food development, and recycling capabilites?

Ok, I know this is a bit of a far fetched question but I was just curious.

2007-12-25 06:39:25 · 19 answers · asked by Vsplendor 2 in Astronomy & Space

Suppose that a binary star system consists of two stars of equal mass. They are observed to be separated by 370 million kilometers and take 6.0 Earth years to orbit about a point midway between them. What is the mass of each?
answer is in kg

2007-12-25 06:38:48 · 2 answers · asked by hermionegranger 2 in Physics

A glass of neglible heat capacity contains 100g of water at 20 degrees celsius
a) how many mlecules of water are inside the glass?
b) what mass of ice at -20 degrees celsius should be added to water to cool it down to 10 degrees celsius?

2007-12-25 06:37:48 · 7 answers · asked by Anonymous in Physics

I understand it is a couple miles wide,
and not really a line, but how did it get there,
and why is it really hilly in this area?

2007-12-25 06:28:23 · 2 answers · asked by KAR36 6 in Earth Sciences & Geology

2007-12-25 06:25:08 · 7 answers · asked by outbackprophet 1 in Mathematics

2007-12-25 06:21:59 · 7 answers · asked by go away 2 in Weather

What is the answer to life, the universe, and everything? Details would be nice. I'm going on a talk show and need to sound smart.

2007-12-25 06:21:10 · 6 answers · asked by Anonymous in Astronomy & Space

Prove that in the elastic collision of two objects of identical mass, with one being a target initially at rest, the angle between their final velocity vectors is always 90 degrees.

2007-12-25 06:14:21 · 6 answers · asked by mn_mikaelian 2 in Physics