Science & Mathematics - 9 September 2007

2a(3-4a)=
6a-8a
and..
2x-(3+5x)
6x-10xsquared.
^^ I know I did that one wrong.
Did I do it right?
If I didn't tell me what to fix.

also I am extremely stuck on this one,-(3x+2y-1).

2007-09-09 06:22:46 · 5 answers · asked by Jenniefrizzzle 4 in Mathematics

2007-09-09 06:22:18 · 17 answers · asked by Anonymous in Paranormal Phenomena

2007-09-09 06:21:40 · 4 answers · asked by Kamil n 1 in Chemistry

2007-09-09 06:20:30 · 2 answers · asked by Anonymous in Mathematics

2007-09-09 06:19:43 · 2 answers · asked by Anonymous in Physics

Where is it?
If the planet had life there should be an abundance of evidence.
Take earth for example there is harldly a square inch of planet surface that is devoid of some life of some sort.
If life was was die out today and you came back in 500 million years you would find a wealth of evidence that life existed at one time.
Accept the fact there is no life on Mars no matter how much you wish to will it to be and how closely you search.
Wishful thinking.

2007-09-09 06:19:38 · 6 answers · asked by Anonymous in Astronomy & Space

The number of students who smoke cigarettes at school is decreasing at a rate of one smoker every 4.36 days. At what rate in smokers per year is the number of smokers declining? Assume 365 days in a year and round to the nearest tenth of a smoker per year"

2007-09-09 06:19:30 · 5 answers · asked by Vonnie 2 in Mathematics

2007-09-09 06:18:51 · 2 answers · asked by Anonymous in Physics

I have to make a fluids title page for our unit on fluids, I'm in the eighth grade if that helps. What should I put on it because I really have no clue since she just said we're starting fluids, make a title page. Any help appreciated!

What should I put on my fluids title page?

2007-09-09 06:17:51 · 2 answers · asked by Anonymous in Engineering

2007-09-09 06:17:19 · 3 answers · asked by Anonymous in Physics

2007-09-09 06:16:41 · 3 answers · asked by Sophia 1 in Physics

Starting from a pillar, you run 220 m east (the +x direction) at an average speed of 4.0 m/s, and then run 280 m west at an average speed of 8.0 m/s to a post.

Calculate your average velocity from pillar to post

I already tried taking the diferance in the distance covered and the differance in time covered and I got -3 m/s.. which is wrong.. But what I did was i diveded 220/4 to get 55 seconds and then 280/8 to get 35 seconds . then I toook the 280-220/35-55 to get -3 m/s but its wrong

2007-09-09 06:15:02 · 1 answers · asked by Walachka 3 in Physics

2007-09-09 06:14:58 · 2 answers · asked by mame3900 1 in Astronomy & Space

my friend was telling me about someone we know thats in the hospital and is on a drug thats like a tranquilizer or something, and it starts with a "c" he just cant remember what its called. does anyone know??

2007-09-09 06:14:40 · 4 answers · asked by emansgirl17 1 in Medicine

2007-09-09 06:14:38 · 2 answers · asked by JohnnyDeppLuva 2 in Mathematics

If you get what i mean,like "my heart skips a beat.." when in love,but speaking in biology terms,the heart only consists of 4 chambers,it doesn't have anything to do with feelings of 'love',does it?like it doesn't control our feelings,right?no rude answers pls..and thanks.

2007-09-09 06:14:32 · 10 answers · asked by rose etoiles 3 in Biology

When I was a tot, they used to rattle our china and now they don't anymore. What gives?

2007-09-09 06:13:58 · 5 answers · asked by jimmyjfox 1 in Other - Science

imagine, u r inside, an empty train compartment, while the train is traveling at a very high velocity in vaccum. now u jump up inside the compartment. wen u get down would u be exactly at the same place u jumped from or not. if so why?

2007-09-09 06:13:31 · 5 answers · asked by Anonymous in Physics

one in the morning and one in the evening

2007-09-09 06:09:39 · 2 answers · asked by Moonbeam 2 in Medicine

y"+9y=0; y(pi/3)=1, y'(pi/3)=-2

2007-09-09 06:09:26 · 1 answers · asked by entropic v 3 in Mathematics

2007-09-09 06:07:52 · 4 answers · asked by Anonymous in Engineering

Explain yourself

2007-09-09 06:07:33 · 3 answers · asked by jamet002 2 in Biology

2007-09-09 06:05:11 · 3 answers · asked by myself01 1 in Engineering

2007-09-09 06:01:56 · 9 answers · asked by bluethunderburst 1 in Biology

2007-09-09 06:00:01 · 8 answers · asked by Valerie 1 in Zoology

2007-09-09 05:59:48 · 6 answers · asked by Anonymous in Mathematics

Okay i'm in calculus but i'm just reviewing for school

how do you do a logarithm for this problem?? (need to find "t")

(1.0375)^t= 2

2007-09-09 05:59:43 · 3 answers · asked by Katie 4 in Mathematics

nutritional caloric content of a 10 gallon tank of gas? (3.8 L = 1 gal)

2007-09-09 05:56:53 · 1 answers · asked by Varun S 1 in Physics

How would you write numbers in powers of 2?

Ex. Write as a power of 2.

a)32
b)2

What is the answer, and how did you get it?

2007-09-09 05:55:23 · 3 answers · asked by Jack J 1 in Mathematics

and water they need, but set up sunlamps, and have say 3 hours light/3 hours dark to cut the growing season down to 1/4 of what it would ordinarily be...?

Would grain, fruit or vegetables grow faster? Would they be stunted or inedible or not contain the right vitamins and minerals? Could I get a maple tree to produce beautiful autumn leaves all year round...?

I don't have the facilities to do an experiment, so please don't tell me to try it and see.

Anybody ever tried anything like this? PLEASE, NO POT-GROWING STORIES! That's not what this is for. Any links to scientific studies that have actually tried this?

Thanks for all your serious answers!

9 SEPT 07, 1755 hrs, GMT.

2007-09-09 05:54:54 · 2 answers · asked by cdf-rom 7 in Botany