Science & Mathematics - 14 December 2007

does anyone understand proofs?
and could help me.
or have a way of explaining it that doesnt come from a 30 yr-old that maybe i could understand
anyone please!!!
thanks you =/

2007-12-14 12:07:25 · 7 answers · asked by Nikki 1 in Mathematics

2007-12-14 12:06:24 · 5 answers · asked by Anonymous in Medicine

what is the answer

2007-12-14 12:04:36 · 9 answers · asked by Denise C 1 in Mathematics

2007-12-14 12:00:01 · 6 answers · asked by Anonymous in Zoology

alien pictures and videos up-to-date.

2007-12-14 11:58:06 · 7 answers · asked by Doubledose6 1 in Astronomy & Space

i havent been keeping up to date on the issues

2007-12-14 11:57:51 · 12 answers · asked by iloveseattle 3 in Astronomy & Space

A)
Richard has 22 coins with a total value of $4. If the coins are all quarters and dimes, how many of each type does he have?
B)
A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound. The two types are to be mixed to create 100lb of mixing that will sell for $11.25 per pound. How much of each type of bean should be used in the mixture?
C)
In a town election, the winning canidate had 220 more votes than the loser. If 810 votes were cast in all, how many votes did each canidate recieve?
D)The length of a rectangle is 2 in. more than twice its width. If the perimeter of the rectangle is 34in., find the dimensions of the rectangle.

2007-12-14 11:56:38 · 7 answers · asked by jennifer p 1 in Mathematics

or might the first derivative of that function be different? If the answer can be different, please cite an example.

2007-12-14 11:54:06 · 4 answers · asked by Anonymous in Mathematics

2007-12-14 11:51:49 · 5 answers · asked by James K 1 in Medicine

Ok, so i have a toothpick bridge due on the 18th of December, and I have only done the pillars. We can only use elmers glue, and have a limit of 500 toothpicks. Do you have any tips, or designs that i could use to help me out?

2007-12-14 11:51:11 · 4 answers · asked by Margo S 2 in Physics

Approximately how many planets have astronomers found that orbit their own sun? The answer after I receive your estimates.

2007-12-14 11:47:12 · 20 answers · asked by Anonymous in Astronomy & Space

does any1 know how many kills/missions u have to get/pass to unlock new ships?
is there a list somewhere telling u!?

2007-12-14 11:46:17 · 3 answers · asked by Anonymous in Astronomy & Space

2007-12-14 11:41:28 · 7 answers · asked by Kevin c 1 in Geography

SURF

2007-12-14 11:40:45 · 2 answers · asked by Anonymous in Geography

Broad Spectrum

2007-12-14 11:38:23 · 6 answers · asked by LOSTANDHURT 1 in Biology

2007-12-14 11:37:09 · 2 answers · asked by Komal P 1 in Earth Sciences & Geology

Determine whether the following series converge or diverge. If they converge, find their sum if possible.

1/(2*3) - 3/(3*4) + 5/(4*5) - 7/(5*6) + ........................

2007-12-14 11:32:30 · 2 answers · asked by A4life2k4 1 in Mathematics

during my frequent travels, I notice that the toothpaste supplied in hotels are made in China with no identifiable brand name. A check with the hotel management reveal their ignorance on the matter (or are they trying to cover up?) Are there any assurance that these toothpaste do not contain the harmful DEG substance?
How to tell if a certain toothpaste contain DEG? Could the taste, color, texture or smell of the toothpaste provide any clues?

2007-12-14 11:30:52 · 4 answers · asked by Avex 3 in Chemistry

A vertical tower of height 60 m is surmounted by a radio mast of height 25 m. Find the greatest angle that the mast subtends at a point in the horizontal plane through the foot of the tower.

2007-12-14 11:28:10 · 3 answers · asked by JDickens10 2 in Mathematics

lots of local direct hits

2007-12-14 11:27:56 · 7 answers · asked by just checking 1 in Weather

Is the 2012 Asteroid collision gonna happen?

2007-12-14 11:25:41 · 18 answers · asked by Russianator 5 in Astronomy & Space

2007-12-14 11:25:11 · 13 answers · asked by Anonymous in Mathematics

thanks!

2007-12-14 11:20:22 · 7 answers · asked by Electra 2 in Astronomy & Space

what is the least common multiple of 12, 20,and 35

2007-12-14 11:19:58 · 14 answers · asked by Flyyasever 3 in Mathematics

through the points: (-5,-1) and (3,3)

2007-12-14 11:18:34 · 7 answers · asked by puja p 1 in Mathematics

cos x + cos2x + cos3x = cos2x(1 + 2cos)

2007-12-14 11:17:57 · 5 answers · asked by Chess 2 in Mathematics

2007-12-14 11:15:52 · 10 answers · asked by AJ 2 in Medicine

2007-12-14 11:15:29 · 7 answers · asked by mrsstrick27 2 in Mathematics

Does anyone know of a site where i can find out the weather for certain areas in Queensland for the next week?? Going camping so need to know...Thanks

2007-12-14 11:14:54 · 2 answers · asked by Anonymous in Weather

How do the birds know when to turn and in what direction as a flock? What is the mechanism by which they do this, for example: by sight, sound, etc.?

2007-12-14 11:12:53 · 2 answers · asked by Anonymous in Zoology