Science & Mathematics - 11 January 2007

Can you please help me do the following problem

2x +2z=6
5x+3y =11
3y - 4z=1
can you please explain to me how to do it the answers in the back in the book are (-2,7,5). I keep trying the problem but I keep getting the wrong answer can you please help.

2007-01-11 15:05:20 · 5 answers · asked by elizabeth g 2 in Mathematics

2007-01-11 15:02:18 · 6 answers · asked by styles4u 4 in Mathematics

give an example of an organism that can reproduce asexually and sexually.
give an example of hermaphrodites.

2007-01-11 15:02:04 · 7 answers · asked by Carmen M 2 in Biology

what word is it?

2007-01-11 15:01:29 · 7 answers · asked by Anonymous in Physics

If I got a baby whale and put it in a lake would it live if I fed it good? My teacher told us that whales are mammals and it doesnt matter if they live in salt water. Has anyone tried this and how much do you think it would cost?

2007-01-11 15:01:01 · 13 answers · asked by Anonymous in Zoology

What I need is some help finding the steps to answer this Dividing Radical Algebra 2 Problem.If anyone can help I would appreciate it.
Thanx.
√5 (Minus) √3
divided by
√3+√5

2007-01-11 15:00:21 · 1 answers · asked by Anonymous in Mathematics

I wrote in this blog http://globalpioneering.com/wp02/ that Benjamin Franklin founded the science of electricity but in physics textbooks he is not mentioned at all. Instead physics textbooks mention Newton as the discoverer of law of electricity. For instance, Coulomb's law. Can anyone verify this?

When you look at physics textbooks is Benjamin Franklin mentioned as a great scientist who founded the science of electricity or is he not mentioned at all?

Thanks so much for your help.

2007-01-11 15:00:16 · 6 answers · asked by gravytee 1 in Physics

2007-01-11 14:59:56 · 5 answers · asked by Josh G 1 in Chemistry

2007-01-11 14:58:29 · 7 answers · asked by Anonymous in Mathematics

im trying to look for a job, and made some mistakes... i have these detox pills i can take but i am curious if the employer or whoever will know i took detox. So, how long does coke stay in your system and what can i do to pass a drug test.

2007-01-11 14:57:49 · 3 answers · asked by cannabisdrivethru 1 in Medicine

To clarify, I am asking how distant the horizon would be. A mile? Six miles? Assume calm water and a sunny clear day.

2007-01-11 14:57:37 · 4 answers · asked by Anonymous in Geography

Seriously, we had a beer in the fridge and they were on the brink of being frozen. By looking through the beer in the light I could tell there was no ice present. He knocked his beer against mine (side to side) and for several seconds nothing happened. After about 5 seconds the beer began overflowing. The beer slowly spewed out of the top with a 90% ice 10% liquid mixture. How is this possible. If the atoms became "excited" then the liquid should have risen in temperature, instead of freeze and spewing.

2007-01-11 14:57:06 · 5 answers · asked by Jozef 1 in Physics

Choosing from energy levels from 1 -7.

2007-01-11 14:56:44 · 1 answers · asked by Azumi 2 in Chemistry

2007-01-11 14:55:42 · 1 answers · asked by andersondja 2 in Chemistry

2007-01-11 14:55:09 · 13 answers · asked by jums 1 in Medicine

how big where they?

2007-01-11 14:52:01 · 11 answers · asked by catchup 3 in Zoology

I am getting really mad that no snow is coming down in the north east. How long is this El Nino going to last?

2007-01-11 14:51:51 · 4 answers · asked by jumanji 2 in Weather

for example : C9H8O4

would be written as: C=Carbon 9
H= Hydrogen 8
O= Oxygen 4

But I need to know how to do those that are in parenthesis like:

Mg(OH)2

help please.thank you

2007-01-11 14:51:38 · 4 answers · asked by M B 1 in Chemistry

2007-01-11 14:51:13 · 3 answers · asked by Robert 1 in Mathematics

2007-01-11 14:50:41 · 2 answers · asked by chris a 1 in Chemistry

2007-01-11 14:50:18 · 5 answers · asked by TM 3 in Mathematics

I am being serious here, I was wondering if anyone has any stories of alien abductions, or knows somebody who knows sombody etc. If it was you, what happend to you? If it was somebody you know what happened to them and do you believe it?

2007-01-11 14:48:42 · 10 answers · asked by Anonymous in Paranormal Phenomena

2007-01-11 14:47:42 · 3 answers · asked by zoose 1 in Zoology

Please Help

2007-01-11 14:47:33 · 8 answers · asked by crzybabi 4 in Mathematics

Then
27
26
-33
-34
-35

2007-01-11 14:47:09 · 20 answers · asked by prince u 1 in Mathematics

2007-01-11 14:45:15 · 7 answers · asked by Anonymous in Mathematics

2007-01-11 14:44:13 · 2 answers · asked by styles4u 4 in Mathematics

2007-01-11 14:43:39 · 3 answers · asked by Anonymous in Mathematics

log_2x(z) = 3
log_5y(z) = 6
log_xy(z) = 2/3
Find z.

2007-01-11 14:43:08 · 1 answers · asked by Anonymous in Mathematics

2007-01-11 14:42:54 · 3 answers · asked by courtney_bxny 1 in Physics