Science & Mathematics - 7 December 2007

3x^2+10x+13

Can you show me steps on how to do this please?

2007-12-07 23:35:10 · 3 answers · asked by Lucy 4 in Mathematics

i know that in front of humans animals make noises but when humans arent loooking do they speak a lauguage if they do what is it called?

2007-12-07 23:26:10 · 11 answers · asked by Anonymous in Zoology

I am having trouble deciding which weather outlet is more reliable. Sometimes their forecasts are quite different from each other. Which makes it hard to know what is right and what is not right. Thanks!

2007-12-07 23:25:09 · 2 answers · asked by Madeline 2 in Weather

Explain why this could be.

2007-12-07 23:20:48 · 9 answers · asked by agentorange91208 1 in Other - Science

pleaz do you guyz noe how acorn barnacles move? pleaz write a little bit more for me to understand.... and pleaz site ur source.... thanx

2007-12-07 23:05:27 · 2 answers · asked by niklaus<3 3 in Zoology

2007-12-07 23:02:22 · 7 answers · asked by pikeruss 4 in Weather

I am looking for SOME website that has historical data for temperatures and jet streams for the U.S. starting in June 2007 until the present. Having performed exhaustive searches, I can't find anything relevant to what I'm looking for. I want to see, if possible, animated pictures of what occurred across the lower 48 states during the Summer of 2007. Does anyone know of such a site? Everything I find is useless isobar maps in archives that don't show temperature and jet stream together. Help. Thank you.

2007-12-07 22:57:05 · 3 answers · asked by Marginality 2 in Weather

2007-12-07 22:27:10 · 11 answers · asked by malkana d 2 in Mathematics

What are the functions of:
1. Carbon
2. Hydrogen
3. Oxygen
4. Nitrogen

2007-12-07 22:10:41 · 3 answers · asked by Bart R 1 in Biology

The image is at this link:
http://i203.photobucket.com/albums/aa303/mts6b21/question.jpg
It is supposed to be a 5x3 rectangle made up by identical squares.

Find the number of all P-Q routes(move from P to Q)
(i) that do not self-intersect i.e. do not cross over themselves
(ii) that do not pass through any segment more than once (Check and prove that this is not the answer as (i) )

And one question is that what type of question is this or under what topic?

2007-12-07 22:09:13 · 7 answers · asked by Anonymous in Mathematics

2007-12-07 21:59:13 · 1 answers · asked by a²+b²=c² 4 in Mathematics

http://usaghosthunters.com/

is this a good site for ghost hunters?

2007-12-07 21:58:48 · 4 answers · asked by Anonymous in Paranormal Phenomena

give one word
1> tall grass cultivated for their nutritious seeds: ____
2>growing together of plants that help each other growth:________

2007-12-07 21:58:26 · 5 answers · asked by Anonymous in Biology

2007-12-07 21:49:54 · 19 answers · asked by tajeshwar 1 in Astronomy & Space

2007-12-07 21:48:01 · 15 answers · asked by Anonymous in Geography

2007-12-07 21:44:34 · 17 answers · asked by Jay M 1 in Biology

2007-12-07 21:28:40 · 4 answers · asked by Anonymous in Mathematics

I am basically a sceintist and I have such a technology by that I can run an areoplane, a car, or a train in any part of the world while sitting in any other part of the world.
e.g. Say If I am sitting in the North Pole I can Run the car in South pole.
I want to proove this to the entire world.....How can I get a sponser for this.

2007-12-07 21:07:43 · 15 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-07 21:01:02 · 6 answers · asked by Anonymous in Biology

Do we have the 4 seasons because the sun is not exactly in the centre of earths orbit and so the distance changes from the sun as we go from summer to winter ?

Thanks

2007-12-07 20:59:54 · 6 answers · asked by Andy 3 in Astronomy & Space

x=2t y=2t^2 +1 Express y in terms of x

2007-12-07 20:55:29 · 6 answers · asked by Anonymous in Mathematics

then the book asked me to 1) determine the year which dvd sales will reach 2,800 million
so I just put log 2800 = 200 * 2^t then so log 2800/log200=2^t and then that equaled 3.0852357..=2^t and then I divided log 2 from 3.0852357 so it equaled 4.9 so that would be 2001 about, right?

and then it asked b)what is the doubling time for sales of dvd players and how do I figure that?

2007-12-07 20:33:39 · 3 answers · asked by Anonymous in Mathematics

than asteroids ?

2007-12-07 20:28:37 · 13 answers · asked by Anonymous in Astronomy & Space

Our Universe is defined as an infinite space (endless) by many. Wouldn't you need space to create space?

2007-12-07 20:27:11 · 3 answers · asked by DIANE V 4 in Astronomy & Space

I noticed that when carrying my baby sis around when she has just waken up from sleep or a nap she seems heavier than when she is wide awake. Is that because of energy?

When I'm tired I feel really heavy too, you know that saying about dragging yourself around in the morning.

2007-12-07 20:01:15 · 10 answers · asked by o0♥0o 1 in Physics

2007-12-07 20:00:43 · 25 answers · asked by Anonymous in Astronomy & Space

I know the answer but I'm not sure how to solve it using Calculus instead of common sense. I need to show work for this type of question.

2007-12-07 19:51:57 · 7 answers · asked by Anonymous in Mathematics

What is the easy way of solving such problem ? Please explain the theory if possible. Thank you

2007-12-07 19:34:06 · 3 answers · asked by aditya 1 in Mathematics

WHY?

2007-12-07 19:25:14 · 11 answers · asked by Anonymous in Biology

2007-12-07 19:00:42 · 5 answers · asked by Anonymous in Physics