Science & Mathematics - 17 September 2007

Are they indangered?I heard they where.But ????

2007-09-17 08:53:42 · 3 answers · asked by - 5 in Zoology

2007-09-17 08:53:21 · 2 answers · asked by Anonymous in Chemistry

r(t) = 2 i + 4 t^5 j [0 , 2]

2007-09-17 08:53:21 · 1 answers · asked by beeboppinbippity 1 in Mathematics

r(t) = -2t i + (7/t) j , t=1

2007-09-17 08:51:53 · 1 answers · asked by beeboppinbippity 1 in Mathematics

33 as a percentage of 48

2007-09-17 08:50:49 · 9 answers · asked by Anonymous in Mathematics

what is the scientific method called and how does it work

2007-09-17 08:47:49 · 7 answers · asked by helen m 1 in Physics

A drawer contains 8 blue, 15 white, and 17 red socks. How many socks must be removed without looking to be sure of getting at least one matching pair?thx!

2007-09-17 08:47:31 · 7 answers · asked by Meow* 2 in Mathematics

What is the purpose of the four red rods shown in the picture?
http://tinypic.com/view.php?pic=5xpy4o3

2007-09-17 08:47:01 · 3 answers · asked by Alexander 6 in Physics

2007-09-17 08:44:21 · 3 answers · asked by cliffordw hippiefied ol fart 7 in Chemistry

4x-12y=5
-x+3y=-1

2007-09-17 08:42:15 · 2 answers · asked by Jerry Z 1 in Mathematics

What's the official name for battery hens?

2007-09-17 08:41:56 · 3 answers · asked by Pie and Mash 2 in Zoology

because i heard people argue that its just the rotation around the sun that causes the seasons

2007-09-17 08:40:24 · 9 answers · asked by daniel 3 in Astronomy & Space

2007-09-17 08:39:35 · 4 answers · asked by Mrs. Iero <333 2 in Earth Sciences & Geology

2007-09-17 08:36:08 · 2 answers · asked by Daniel 1 in Earth Sciences & Geology

2007-09-17 08:35:19 · 3 answers · asked by kt 2 in Zoology

What is the layout of the Wolf system? Planet's/Moons/Astroid belts? and do any of them have names and what kind of planets are they?

2007-09-17 08:34:08 · 2 answers · asked by animescifigamer359 2 in Astronomy & Space

When I was young it seemed that life was so wonderful.....oops, no, sorry (got carried away, didn't mean to burst into song there) - when I was young I was lead to believe the seasons had a definitive "start" date - ie summer started 21 June, Autumn started 21st September, Winter started 21st December and Spring started 21st March. I keep hearing TV people saying it is autumn now so I'm a tad confused - can anyone throw any light on my mystery?

2007-09-17 08:32:29 · 7 answers · asked by Rachael H 5 in Weather

when u see all the wind mills together. and we make electicity with them. how does it work and how much is it to get a small one.

2007-09-17 08:32:10 · 4 answers · asked by DANIELL 1 in Engineering

i really need help because i dont understand it and neither do my brother nor my mom.

1. the supplement of an angle is 8 degrees less than 3 times the measure of the angle. find the angle measure.

2. 2 angles are complementary. 4 times the measure of the smaller is half the measure of the larger. find both angle measures.

3. 2 angles are complementary. the measure of one angle is one-fourth of the other. what are the angle measures?

4. the complement of an angle is 8 degrees less than 1/3 of the angles supplement. find the angle measure

PLEASE PLEASE HELP ME. these are the only problems i dont get

2007-09-17 08:30:22 · 5 answers · asked by HELLO123 3 in Mathematics

2007-09-17 08:30:14 · 4 answers · asked by slboulerice 1 in Zoology

Two jets are traveling toward each other an are 3400 km apart. One jet is flying 875 km/h. The other jet is flying at 825 km/h. In how many hours will the jets pass each other?

2007-09-17 08:26:58 · 5 answers · asked by Anonymous in Mathematics

i just curious cuz how is it supposed to stick lol xD

2007-09-17 08:26:29 · 4 answers · asked by Anonymous in Physics

what is -24 divided by 8 - (-5)+ 2

and 14 divided by (-2) - (-4) + 3 (-2)

SHOW YOUR WORK

2007-09-17 08:24:49 · 5 answers · asked by Anonymous in Mathematics

1.) lim (x^3-2x) / (x-2)
x ->2

I know that it is indeterminate and that I have to evaluate algebraically. I just can't figure out what to do with the x^3. I factored it out to x(x^2-2) / (x-2) but I don't know where to go from there. Is that as far as you can take it so it would be DNE?

lim (sq. root 1+x) - (sq. root 1-x) / x
x ->0

I have no problems when there's just one square root, but for some reason when there's two I can't seem to ever get the right answer.

Any help is great. Thanks.

2007-09-17 08:23:59 · 2 answers · asked by braillehand 1 in Mathematics

1. Determine whether the following is an expression. Yes or No
9 + w = c

2. find the mean
2,8,10,12,13

3. Divide
y 18/ y10

4.solve the system by substitution
x + y = 12
y = 2x

5. solve the system by addition
5x- 3y =13
4x- 3y =11

6. solve
x -7 = 4

2007-09-17 08:19:56 · 6 answers · asked by Anonymous in Mathematics

If anyone could explain how the following is done, it would be greatly appreciated!

Suppose that gcd(a,b)=1 and suppose further that a divides c and that b divides c. Show that the product ab must divide c.

2007-09-17 08:19:12 · 3 answers · asked by oldtimer 2 in Mathematics

on the moon

2007-09-17 08:10:53 · 7 answers · asked by JAMES N 1 in Astronomy & Space

What constellation is it supposed to be visible in?

I know a lot of people don't believe in it, but I don't care what they think.

2007-09-17 08:10:49 · 12 answers · asked by kevin 2 in Other - Alternative

some one said something about highist comon factor

2007-09-17 08:10:26 · 11 answers · asked by Anonymous in Mathematics

2007-09-17 08:07:35 · 6 answers · asked by  the purple duck 5 in Physics