Science & Mathematics - 3 December 2006

2006-12-03 08:59:37 · 1 answers · asked by chupchupina 1 in Engineering

Answer needs to be backed up by scientific information

2006-12-03 08:58:15 · 5 answers · asked by coldfire5418 3 in Zoology

Can someone please tell me why these two simultaneous equations have no solution

2x - 3y = 9
-4x + 6y = 8

I know that one has a positive gradient and one has a negative gradient and i think it has summat to do wi this but i aint sure wot please help me

2006-12-03 08:58:11 · 11 answers · asked by Perfect-Angel84 2 in Mathematics

2006-12-03 08:56:28 · 2 answers · asked by Junior 1 in Chemistry

Two observers are 200 ft. apart, in line with a tree containing a bird's nest. The angles of elevation to th bird's nest are 30 degrees an 60 degrees. How far is each observer from the base of the tree?

2006-12-03 08:56:13 · 4 answers · asked by nilsenmatt 1 in Mathematics

huge and beautiful space is?

2006-12-03 08:54:32 · 7 answers · asked by lady_s_hazy 3 in Astronomy & Space

If i had sin2x(sin3x+cos3x)=2 how would i solve for x.
similarly if i had sin18x(sin6X+cos2x)
or sin14x(Sin6x+cos4x)

2006-12-03 08:53:23 · 2 answers · asked by kusbetts 2 in Mathematics

Can anyone help me solve my chemistry homework problem? If so, that would be so much help!! :) Thanks!

2006-12-03 08:53:01 · 3 answers · asked by Anonymous in Chemistry

sorry just need to get ur attention.
will anyone be nice enough to describe the bonding in network solids?
also what are the significant physical properties of network solids?

2006-12-03 08:50:52 · 2 answers · asked by Ballerina 5 in Chemistry

2006-12-03 08:50:30 · 6 answers · asked by Teresa A 1 in Mathematics

The data table satisfies the equation y=kx to the n power. k and n are positive integers. find k and n
X__2__3___4__5
Y__1_2.25_4__6.25
i am completely lost. any help would be great. thank you.

2006-12-03 08:50:18 · 2 answers · asked by dude 5 in Mathematics

2006-12-03 08:49:33 · 2 answers · asked by Anonymous in Mathematics

2006-12-03 08:47:55 · 4 answers · asked by ? 2 in Mathematics

2006-12-03 08:47:20 · 3 answers · asked by JORGE P 1 in Zoology

2006-12-03 08:45:57 · 3 answers · asked by bouch- 1 in Physics

How come tree leafs change color in automn before falling??

2006-12-03 08:44:47 · 7 answers · asked by Anonymous in Botany

log3(5x+5) - log3(x2 - 1) = 0

log2(x - 2) + 5 = 8 - log2 4

please help.. Can you please show steps on how you solved it.. I want to see how I got my answers wrong.. Thanks

2006-12-03 08:44:22 · 2 answers · asked by coolman 1 in Mathematics

My son who is 7 fetched his homework home and he had to give 10 examples of a prism and 10 examples of prism. The teacher gave him 2 examples of each with the 2 for a cylinder being a bin and a tin of beans, and the two examples for a prism being a tomblerone and a cucumber? I have looked on the internet and everything says a prism should have 3 sides, eg a tomblerone. So how come a cucumber is a prism? i have phoned other parents who have kids in the same class and they have all being given the same. CONFUSED???!!!!

2006-12-03 08:44:11 · 11 answers · asked by 2plus3 3 in Mathematics

Any advice on which fields are the most interesting or have the most opportunity?

2006-12-03 08:43:05 · 6 answers · asked by golfer45 1 in Engineering

Okay I am using someones note and they have something that says:

Hci

Is that even an element? If not, than would it be HCi or HCI??

2006-12-03 08:42:25 · 4 answers · asked by Cloudyheartgurl 3 in Chemistry

its for me....hint hint i have bad marks...lol

2006-12-03 08:42:18 · 5 answers · asked by hehe 1 in Zoology

2006-12-03 08:42:04 · 4 answers · asked by oanaveres 2 in Physics

a. make platelets
b. kill pathogens
c. make bone marrow
d. carry oxygen

2006-12-03 08:41:56 · 7 answers · asked by Amy 1 in Biology

I know of the term "Ideal gas," but what exactly keeps gases from acting as an ideal gas?

2006-12-03 08:41:37 · 2 answers · asked by Josh 5 in Chemistry

2006-12-03 08:40:38 · 3 answers · asked by F-U 1 in Botany

If I could spin a laser at over 1000revs per second inside a circular wall 186 miles around would the laser beam be travelling faster than 186,000 miles per second?

2006-12-03 08:39:38 · 8 answers · asked by bo nidle 4 in Astronomy & Space

2006-12-03 08:38:28 · 2 answers · asked by Teresa A 1 in Mathematics

Why was there a need for it at the time?
Where did Einstein's inspiration come from?

2006-12-03 08:38:13 · 3 answers · asked by benabean87 2 in Physics

such cells and nitrustion and also what else things biology is

2006-12-03 08:37:18 · 14 answers · asked by Anonymous in Biology

I'm trying to get a DIP IC off of a PCB, but I can't get the solder to drip away from the joints. Is there any way I can keep it liquid long enough for it to drip away?

2006-12-03 08:36:16 · 4 answers · asked by sciguy 5 in Engineering