Science & Mathematics - 23 November 2007

Factor the Following polynomial completely.

x^3+2x^2-3x-6

I have forgotten how to do it. Please show work. Thanks

2007-11-23 14:46:29 · 8 answers · asked by Deanna H 1 in Mathematics

I know the answer is e^(-8) but I don't know how to get to that.

2007-11-23 14:45:49 · 9 answers · asked by Elfy 2 in Mathematics

Whenever I get kits or books about electronics, they don't explain what every little part in a circuit is used for and how it completely works, it gives a more overall, genral type explanation.

And the more advanced kits explain the details even less. I want to understand the details, what every little component in the circuit is used for, so I know enough to make my own circuits.

How can I do this?

2007-11-23 14:45:04 · 7 answers · asked by worried person 1 in Engineering

2007-11-23 14:44:38 · 16 answers · asked by yaket2003 4 in Earth Sciences & Geology

Would a hospital usually tell you the full genotype of your blood type (ie AO or AA instead of just A)? And when would they most give you this info? (ie when you're born, when you go in for a check-up, etc).

Just to add....Yes, I know they have the techniques and COULD give you the genotype, but I want to know if it is common for them to actually disclose your genotype without you having to ask. thanks!

2007-11-23 14:37:44 · 3 answers · asked by morganwg 2 in Medicine

wires that carry telephone signals are twisted.the twisting reduces the noise on the line from nearby electric devices that produce changing currents.how does the twisting reduce noise pickup?.

2007-11-23 14:36:43 · 2 answers · asked by mr guy 1 in Engineering

what is the selling price of an $899 computer that is on sale for 25%?
I need help please.

2007-11-23 14:31:41 · 7 answers · asked by YoYo 2 in Mathematics

Why does my body generate so much of heat? is it the things i eat? Thank you for all your answers!

2007-11-23 14:31:15 · 4 answers · asked by Anonymous in Biology

Prove that the line x = 1 + 2t, y = -1 + 3t, z = 2 + 4t is parallel to the plane x - 2y + z = 6.
What is the distance between the line and the plane?

2007-11-23 14:18:27 · 2 answers · asked by Anonymous in Engineering

I'm looking for the name and a website (or wiki entry) on an ancient form of forestry. It entails cutting the tree down (but not completely) for use as wood source, but leaves enough trunk behind to grow saplings out of. The saplings are pruned until the strongest grows to become a new tree, and the process repeats. I remember reading about this being practiced in England, and it being a multi-generational form of sustainable forestry being practiced even in ancient times. It is still being practiced by a few people today.

Name, and reference site, please.

2007-11-23 14:17:12 · 1 answers · asked by testingthewaters 2 in Botany

The line L through the origin is normal to the plane 2 - y - z = 4. Find the point in which L meets the plane x + y - 2z = 2....

2007-11-23 14:16:42 · 2 answers · asked by Anonymous in Mathematics

I personally think that cloning humans should be legal.

2007-11-23 14:15:20 · 5 answers · asked by Anonymous in Biology

2007-11-23 14:14:45 · 4 answers · asked by Chess 2 in Biology

I changed a compressor on an old kenmore and got it all checked, no leaks and held a vaccum. The filter has a tap on it to access the system. I charged with suction with 3.75 oz as it says and it still will not run correctly. What could it be?

2007-11-23 14:10:04 · 2 answers · asked by hvacrjohn 2 in Engineering

REST OF THE PROBLEM...
20.0-kg gold bar at 25.0C is placed in large, insulated 0.800-kg glass container at 15.0C and 2.00 kg of water 25.0C. Calculated and final equilibrium temperature.
The book have an answer of 26.0C
PLEASE HELP ME I HAVE DONE THIS PROBLEM THREE TIME AND STILL DON'T UNDERSTAND HOW THIS ANSWER CAME ABOUT, PLEASE SHOW ME THANK YOU

2007-11-23 14:06:27 · 3 answers · asked by markeesha h 1 in Physics

2007-11-23 14:02:19 · 11 answers · asked by Anonymous in Astronomy & Space

2007-11-23 14:01:28 · 1 answers · asked by STUDY 3 in Engineering

2007-11-23 13:50:49 · 6 answers · asked by SoulEaterKurizu 5 in Zoology

an aqueous solution containing only NaOH is simultaneously 10.71 molal and 9.96 M in the solute. calculate the density in g/cm^3. the answer is 1.328 but how did they get it?
thanks for any insight

2007-11-23 13:49:32 · 2 answers · asked by Levi M 1 in Chemistry

hey guys i live in western wisconsin and i'd like to make some black powder ( I have all other ingredients). i heard that charcoal has sulfur in it. is there a way of extracting sulfur

2007-11-23 13:47:51 · 5 answers · asked by Anonymous in Chemistry

2007-11-23 13:44:08 · 3 answers · asked by Anonymous in Physics

When they're not praying for what the person wants or needs...but for what THEY want to happen in the person's life.(even if it seems like a good prayer..it might not be what that person wants or needs and would even be harmful to that person..even tho the pray-er doesn't realize it)(Maybe that's why Jesus said ,"Pray for yourselves and for your children.")

2007-11-23 13:32:34 · 17 answers · asked by Deenie 6 in Paranormal Phenomena

I know it's a very inexact question: I'd like to see a general science book that leads me in the direction of advanced material. I'm not looking for elementary level books (with generalisations), but the real explanation, made as readable as possible.

In addition, more specific topics:

Geology of rocks, history of geography
Wind directions
Physics
Botany
Natural Sciences, Classifications

2007-11-23 13:32:00 · 3 answers · asked by mitzzkai 1 in Other - Science

2007-11-23 13:31:23 · 2 answers · asked by Charles G 2 in Earth Sciences & Geology

Saw reference to this in several movies. What's the big deal?

2007-11-23 13:28:14 · 6 answers · asked by tuppleton 1 in Earth Sciences & Geology

2007-11-23 13:26:04 · 2 answers · asked by boo 2 in Biology

how can i measure the long/lat values of any place with some handy instrument

2007-11-23 13:24:48 · 11 answers · asked by upkar 2 in Engineering

Idaho,Wyoming.

2007-11-23 13:17:09 · 2 answers · asked by z 1 in Earth Sciences & Geology

2007-11-23 13:14:45 · 4 answers · asked by Anonymous in Physics

2007-11-23 13:07:44 · 6 answers · asked by Anonymous in Geography