Science & Mathematics - 3 December 2007

Y=2x²-3x-2
Y=x-4

Iv already done this using a graph but im getting mixed up rearranging the formular can anybody help?

2007-12-03 23:57:50 · 4 answers · asked by Anonymous in Mathematics

2007-12-03 23:56:31 · 16 answers · asked by Anonymous in Geography

i want the exact answer without any confusion.it should be displayed with percentage.

2007-12-03 23:56:10 · 5 answers · asked by Anonymous in Other - Science

I solved it but the answer choices are totally different
here are the answer choices for them.
a.4y - 3 = 0
b.4x + 4y - 5 = 0
c. 2x-2y -1 = 0
d. 4x - 4y +1 = 0
e. 2x + 2y - 1 = 0

the answer i got was D, but I dont think it's right because I didnt change it into perpendicular. Please help me.

2007-12-03 23:46:51 · 4 answers · asked by Thanh 1 in Mathematics

2007-12-03 23:38:43 · 17 answers · asked by Anonymous in Weather

Know anything about the risks involving food?

Then help us!

we're in science =]


<3
X

2007-12-03 23:36:49 · 3 answers · asked by Anonymous in Chemistry

do u think it exists elsewhere? if so in what form?
if we are talking about inteligent life...how advanced do you think they wil be? will it be millions/ billions of years the difference?

2007-12-03 23:35:03 · 12 answers · asked by Anonymous in Astronomy & Space

2007-12-03 23:25:58 · 5 answers · asked by Kal-El 1 in Paranormal Phenomena

Also, how and who determined light-years?

2007-12-03 23:21:05 · 4 answers · asked by Anonymous in Physics

2007-12-03 23:16:29 · 13 answers · asked by tibbles94 2 in Geography

But i heared tht some German scientist found a mass partical which can go faster than light. if it is then E=mc^2 is wrong right?

2007-12-03 23:15:56 · 6 answers · asked by Anonymous in Physics

2007-12-03 23:14:46 · 14 answers · asked by jamie 1 in Biology

It took a boat 7 hours to travel 231 miles with the current but 11 hours to travel the same distance against that same current. Find the speed of the boat in the still water and the speed of the current.

2007-12-03 22:41:50 · 4 answers · asked by journey 1 in Mathematics

this is a question that is buggin me since ninth grade. pls hlp.

2007-12-03 22:36:28 · 4 answers · asked by Ξlectronegative™дtif® 2 in Physics

2007-12-03 22:33:24 · 4 answers · asked by Anonymous in Engineering

If I work 7.25 hours, it's considered 7 hrs and 15 mins.
If I only worked 4.35 hours, what would the difference be ?

2007-12-03 22:27:21 · 4 answers · asked by Ly S 1 in Mathematics

I need this as soon as posible.

2007-12-03 22:26:56 · 2 answers · asked by Azehc 1 in Mathematics

2007-12-03 22:13:59 · 18 answers · asked by Anonymous in Astronomy & Space

2007-12-03 21:58:41 · 19 answers · asked by Anonymous in Astronomy & Space

2007-12-03 21:58:14 · 8 answers · asked by stfabdulla 1 in Other - Alternative

http://paranormal.about.com/od/ghostaudiovideo/youtube/yt_west_virg.htm

2007-12-03 21:53:38 · 21 answers · asked by Life goes on... 6 in Paranormal Phenomena

Is it possible to create a micro-climate in a glass jar or aquarium so that a mini-cloud is formed?

2007-12-03 21:51:27 · 6 answers · asked by Anonymous in Weather

square root of (7/3) multiply by square root of (7/3)

thank you!!^_^

2007-12-03 21:50:54 · 8 answers · asked by leSsien 1 in Mathematics

2007-12-03 21:41:15 · 4 answers · asked by Physics_Hard_YES 1 in Physics

1) Which four elements give up electrons most easily?

2) Which four elements give up electrons least easily?

From only this list:
Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Flourine
Neon
Sodium
Magnesium
Aluminium
Silicon
Phosphorous
Sulfur
Chorline
Argon
Potassium
Calcium

2007-12-03 21:17:17 · 7 answers · asked by dawpa2000 2 in Chemistry

I need help with this problem:graphical method

Find two numbers such that twice the smaller plus three times the larger is 34, and 5 times the smaller minus twice the larger is 9.

Find two numbers such that 5 times the larger plus three times the smaller is 47, and four times the larger minus the smaller is 20.

Thanks for your help! 10 points for best answer

2007-12-03 21:14:32 · 9 answers · asked by Asker A 1 in Mathematics

Very shortly I'll be traveling to Martapura, Indonesia where gems are mined. Many try to sell to you on the street. Most are fakes. Is there a quick way to tell what you're getting? Is there equipment to do this? I'm willing to buy a magnifying glass, special lens, etc if this helps. The stones mined there are gems and diamonds

2007-12-03 21:13:28 · 9 answers · asked by Andre F 1 in Earth Sciences & Geology

It is a tiny bacterium or gigantic banyan tree, it is an insignificant ameoba or a mighty man their bodiesare composed of protoplasm

2007-12-03 21:08:48 · 10 answers · asked by Anonymous in Biology

or do you believe it was faked?

2007-12-03 21:01:16 · 25 answers · asked by Anonymous in Astronomy & Space

It's 2 AM over here. About ten minutes ago, I was walking back to my dorm room and suddenly I see a ball of white light fall from the sky and land behind a hill in the distance. Then the entire back of the hill (where it logically struck the ground). lights up creating a silhouette of the hill. If anyone at Cal Poly, San Luis Obispo saw something like this, email me immediately.

2007-12-03 21:01:09 · 10 answers · asked by Anonymous in Astronomy & Space