Science & Mathematics - 30 December 2007

The entire discipline of geograpy s based off four (4) components. What are they?

2007-12-30 11:31:08 · 4 answers · asked by Oog 3 in Geography

or does it have to be the same species?

2007-12-30 11:29:54 · 2 answers · asked by Anonymous in Botany

2007-12-30 11:26:25 · 8 answers · asked by Janelle Alexandria 3 in Mathematics

Okay my teacher teaches something new everyday and uh it's not easy to remember everything so I'm asking for help on this please :]

Here are 2 questions, can someone please explain how I answer them?

1) y = 4x + 2
2 9x - 5y = 4

2007-12-30 11:23:59 · 5 answers · asked by Anonymous in Mathematics

2007-12-30 11:21:04 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2x^2 + 5x – 12
______________
9x^2 – 16

Divided By:

2x^2 – 7x + 6
______________
3x^2 – x – 4

2007-12-30 11:15:49 · 3 answers · asked by Abena 2 in Mathematics

What do rainbows taste like? =)

2007-12-30 11:12:21 · 13 answers · asked by Tainted_Ballerina 4 in Weather

I need a LOT of help with this one.
What in the world is the better power plant? I know the nuclear power plants are really dangerous...but the fossil fuel plants are pretty bad for the environment.
PLEASE SOMEONE HELP!
I need a good website or a decent amount of information on this subject.
Hope to find someone who has something! Haha

Thank you!

2007-12-30 11:11:50 · 8 answers · asked by Anonymous in Chemistry

I think I understand how the brain knows if a sound is to your left or your right, simply because you have an ear either side of your head, and if one ear is picking up a greater intensity of sound then your brain knows the source of the sound is to that sound. But how does your brain know if a sound is directly in front of you or behind you? I thought of this while listening to a wonderful rendition of Beethoven's Ninth this evening at the Barbican! Thanks in advance.

2007-12-30 11:09:41 · 3 answers · asked by Will R 2 in Biology

I speculate that time was 1st noted by primitive man when he unavoidedly noticed that plants grew well when it got warm but not when it was cold; he would notice that bears hibernated and many other anumals seemed scarce when it was cold. He noticed the phases of the moon, 12 or so complete cycles each complete warm/cold cycle. He could not help but distinguish between day and night. Man as symbolizer gave these phenomena names. As he learned to devise tools, he made a sundial to divide a complete day/night cycle into sections probably to improve communication. As tool making improved, man contrived mechanical clocks and moved on to atomic clocks and maybe something even more sophisticated. But time is still a mental construct just as mathematics is. Without man -- no mathematics ... no time. Then , how can time be a real variable quantity? Being a mental construct, man can fit it into any mental construct in a manner convenient to any theory like relativity.

2007-12-30 11:02:54 · 8 answers · asked by Swamp Fox 1 in Physics

2007-12-30 10:59:46 · 9 answers · asked by Eddie S 1 in Astronomy & Space

write the first 4 terms when

Un+2=Un+1 + Un , where,u1=1 and U2=1

I got the impression that U2 would have to be more than 1 as un+1+un=u2 (is that right), if it is then u2= more than 1 ??????
As you can see im trying too hard and should be out there drinking alchohol. If you can, then please answer, (its going to a good cause). Thanks and happy new year

2007-12-30 10:59:04 · 4 answers · asked by jimspike200 1 in Mathematics

In your explanation, be sure to:
- identify the function of a valve in relation to the flow of blood
- identify two places in the circulatory system where valves are found
- identify one specific valve by name and describe its specific function

2007-12-30 10:58:24 · 7 answers · asked by Kevin G 2 in Biology

2007-12-30 10:54:40 · 6 answers · asked by generator dumb 1 in Engineering

2007-12-30 10:54:37 · 2 answers · asked by quintince 1 in Earth Sciences & Geology

2007-12-30 10:54:36 · 3 answers · asked by johnrbrayjr1928 1 in Mathematics

I have a 27:63:90 triangle and I need to find the ratios of the sides, but i dont have any side lengths. How would I do this?

2007-12-30 10:53:27 · 3 answers · asked by Anonymous in Mathematics

2007-12-30 10:50:47 · 13 answers · asked by vizquel fanatic13 1 in Geography

Mine is Saturn, Uranus, and Neptune! =)

2007-12-30 10:46:37 · 14 answers · asked by Anonymous in Astronomy & Space

2007-12-30 10:46:15 · 4 answers · asked by Anonymous in Engineering

I have a 2 carat diamond wedding set that I wear daily. I am also somewhat of a germophobe and I use hand sanitizer (Germ-X) that has 62% ethyl alcohol at least twice an hour. Can this harm my diamonds in any way?

2007-12-30 10:42:56 · 7 answers · asked by fragmented.perfection 1 in Earth Sciences & Geology

The terms are (1) (2,3) (4,5,6) (7,8,9,10) (11,12,13,14,15)
pls show you arrived at this answer and include any necessary formulas that you used to derive the answer

2007-12-30 10:42:00 · 5 answers · asked by sparkle_disliker 3 in Mathematics

This is where i have 2 problems. PLEASE DONT GIVE ME THE ANSWERS I DONT WANT THEM SOLVED JUST THE PARTS I'M STUCK ON:
Problem:
x+2y=10
2x-y=5
(This is 1 problem)
So I dd this:
2x-y=5
and made it y=3x
So then I did the next problem filling in y
x+2(3x)=10
x+6x=10
NOW WHAT?
Isnt it supposed to equal?
Where did I go wrong?
please just help me where I am stuck and don't solve it.
THANKS

2007-12-30 10:37:35 · 6 answers · asked by Kiana 3 in Mathematics

2007-12-30 10:36:54 · 12 answers · asked by sara_s 2 in Zoology

How can you solve these questions? I will post a few. Please try to solve at least one or one someone hasn't solved. Please also don't tell me to do my homework, I am doing it and don't understand thanks.

1) x^4+9x^2-10 <= 0
2) x^3+x^2-6x > 0
3) (x+3)x^2(x-2)^3 => 0


Thank u.

2007-12-30 10:36:36 · 2 answers · asked by myname_isalbert 1 in Mathematics

2007-12-30 10:36:35 · 3 answers · asked by gabbyurgurl15 1 in Biology

That's what I was trying to say about church..on Sunday! As much as this store wants customer..they couldn't handle EVERYBODY at the SAME time..on the SAME day.

2007-12-30 10:29:27 · 10 answers · asked by Deenie 6 in Other - Alternative

what is $17.99 minus 25%?

2007-12-30 10:29:08 · 7 answers · asked by Anonymous in Mathematics

We live in a universe full of integers as when everthing is put to basics it is an integernumber of quarks or strings for that matter. Is it possible for a number with an infinite level of decimal figures to exist.

2007-12-30 10:28:25 · 2 answers · asked by Anonymous in Mathematics

a useful piece of scientific information?

2007-12-30 10:24:53 · 5 answers · asked by coolkid 2 in Physics