Science & Mathematics - 6 December 2006

2006-12-06 22:33:00 · 2 answers · asked by Hugo B 1 in Biology

2006-12-06 22:30:23 · 14 answers · asked by Anonymous in Astronomy & Space

2006-12-06 22:29:16 · 5 answers · asked by Akshay 1 in Biology

2006-12-06 22:26:56 · 3 answers · asked by bijayaketano 1 in Engineering

1. x/3 - y/3 = x/3 - y/3
2. 7/a + 2a = 5a
3. 9ab/cd^2 - 7ab/cd^2 = 2ab/cd^2
4. x^2/x-y - y^2/x-y = x^2/x-y - y^2/x-y
5.10/x-3 - 2x+9/x-3 +5x-7/x-3= 10/x-3 - 2x+9/x-3 +5x-7/x-3
6. 5/x-7 - x-1/x-7 - 2+x/x-7 = 5/x-7 - x-1/x-7 - 2+x/x-7
7. 2x+3/3 - 3x-1/2+x-4/12
= 8x+12/12 - 18x-6/12 +x-4/12
=-9x+12/12
8.3a/ax+ay +2a/ax+ay = 5a/ax+ay
pls. correct me if i'm wrong.

2006-12-06 22:25:40 · 10 answers · asked by avenger 2 in Mathematics

2006-12-06 22:24:58 · 12 answers · asked by jenkster 1 in Biology

title says it ALL

2006-12-06 22:24:49 · 7 answers · asked by plasmad00d479 2 in Physics

Evaluate the integral of (2x)/(x^2+6x+13). The answer given was: ln(x^2+6x+13) - 3arctan((x+3)/2) + C.

My initial thoughts were to complete the square for the denominator, but to integrate it with arctan would only work for a numerator of a number and the numerator in the problem has a variable, which I don't know how to encounter.. presently. I can't think of any other way of rewriting or splitting apart. Any nudges in the right direction, explanation of how the answer produces 2 terms, or working of the problem would be extremely helpful. Thanks!

2006-12-06 22:23:08 · 4 answers · asked by bobbert 1 in Mathematics

Does it have something to do with salivary enzyme ptyalin digesting starch to maltose?

2006-12-06 22:19:27 · 10 answers · asked by siddharthm91 2 in Biology

2006-12-06 22:17:42 · 9 answers · asked by KingOfQueens 1 in Astronomy & Space

i tried adding vitamin c to my sugar so every time i had some sugar in my tea or something i would get vitamin c but when i add milk to the tea of my cereal the milk goes all clumpy and gross and tastes like bad yoghurt!

2006-12-06 22:02:00 · 2 answers · asked by adam_adams_25 3 in Chemistry

thnx!

2006-12-06 22:01:09 · 14 answers · asked by ezra p 1 in Mathematics

2006-12-06 21:59:51 · 17 answers · asked by barney 2 in Zoology

thnx!

2006-12-06 21:59:36 · 4 answers · asked by ezra p 1 in Mathematics

2006-12-06 21:59:27 · 15 answers · asked by Jimboy 1 in Engineering

How can an INCREASE of delay cause a reversal of apparent sound direction? Would this happen with real signals? Why?

2006-12-06 21:57:38 · 1 answers · asked by Anonymous in Engineering

When masking the varying amplitude 440Hz tone with a 400 Hz tone, the masking effect was
not equal for equal amplitudes before and after the peak had passed. Why was that?

2006-12-06 21:55:11 · 1 answers · asked by Anonymous in Engineering

ive always wondered why big boulders and rocks are found high upthe beach rather than lower! does any1 know why?

2006-12-06 21:53:48 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2006-12-06 21:53:05 · 6 answers · asked by robert b 1 in Mathematics

30(5^2x)-1=176

2006-12-06 21:46:33 · 4 answers · asked by spike99999net 1 in Mathematics

what is it used for in the Oil & Gas Industry?

2006-12-06 21:42:08 · 9 answers · asked by Rads 1 in Chemistry

2006-12-06 21:40:44 · 8 answers · asked by janry 1 in Earth Sciences & Geology

how is the population of u.k.?

2006-12-06 21:38:17 · 3 answers · asked by kp 1 in Geography

2006-12-06 21:33:46 · 1 answers · asked by maanne 1 in Chemistry

Can animal testing ever be justified even if it found a cure to cancer?

2006-12-06 21:29:24 · 31 answers · asked by Princess 4 in Zoology

wen glucose is injected into the body through glucose bottle. then if the bottle gets leaked or gets empty,the air that is carbondioxide enters into the blood.I WANT 2 KNOW THE HARMFULL EFFECTS AND DANGERS OF IT.

2006-12-06 21:17:50 · 11 answers · asked by Parii 1 in Biology

2006-12-06 21:16:11 · 9 answers · asked by frederic w 2 in Weather

2006-12-06 21:16:11 · 3 answers · asked by tongsoy 2 in Botany

And does it grow coins or notes?

2006-12-06 21:14:22 · 10 answers · asked by Anonymous in Botany

2006-12-06 21:12:55 · 14 answers · asked by Mark from Bama 2 in Mathematics