Science & Mathematics - 13 August 2007

Please solve,

ln(x+2)*ln(x-2) = 0

* = times

2007-08-13 22:02:33 · 4 answers · asked by Anonymous in Mathematics

2007-08-13 22:01:39 · 4 answers · asked by old dick withers 3 in Mathematics

2007-08-13 21:57:33 · 4 answers · asked by Peter 1 in Mathematics

2007-08-13 21:49:19 · 2 answers · asked by Anonymous in Engineering

1. a) Find dy/dx of [(x/2)sqrt(16-(x^2))] + [8 sin^(-1) {x/4}]

b) Integrate | [sqrt(16-(x^2))] .dx

2007-08-13 21:48:42 · 2 answers · asked by year 12 student 2 in Mathematics

2007-08-13 21:47:46 · 4 answers · asked by Anonymous in Engineering

ever taken pics?
what kind
and
show me the best pic you took

2007-08-13 21:40:09 · 7 answers · asked by Mercury 2010 7 in Astronomy & Space

need to know... now... it's for an assignment... can't find any answers on any websites! =| need help!

2007-08-13 21:36:12 · 7 answers · asked by Anonymous in Astronomy & Space

When somehing dissolves does it just mean it has been broken down? I'm having a hard time understanding why sugar is said to dissolve in water and something like flour does not?

2007-08-13 21:29:08 · 4 answers · asked by beatme 3 in Chemistry

what is the most that you can go down in one night?

2007-08-13 21:18:15 · 10 answers · asked by Anonymous in Astronomy & Space

2007-08-13 21:14:02 · 3 answers · asked by philip c 1 in Chemistry

it blends in with leaves...and i live in chicago. it has 6 legs, looks like a grasshopper has red eyes and its wings are like leaves.

my sister said it made a clicking noise and she found it in her room. she attempted to kill it..but it didnt die. its guts are gushed out of its body. and it still moves. it was hurt a half hour ago and still hasnt died. its moving more and more as time goes by but barely... im just wondering wat it is.. is it a catydid?

its the size of a full grown grasshopper..about 2 inches in length including wings. a couple of weeks ago this really tiny bug jumped on me the size of a pea and its wings were raindrop shaped. it hops really far too.. what was that bug??

IT IS NOT A GRASSHOPPER. I KNOW ONLY THAT.

2007-08-13 21:12:22 · 5 answers · asked by Jasmine 3 in Zoology

just the simplest...
thank you!!!

2007-08-13 21:10:13 · 6 answers · asked by mr. okizzay 1 in Weather

4(3 - 2x) = 7x-4(1+x)

5-(8x-1) = 6(1-x)+2

2007-08-13 21:08:09 · 6 answers · asked by Hermione Granger 4 in Mathematics

2007-08-13 20:58:23 · 5 answers · asked by peck3000 2 in Astronomy & Space

2007-08-13 20:58:09 · 6 answers · asked by KrishanRam(Jitendra k) 3 in Weather

2007-08-13 20:49:32 · 1 answers · asked by Anonymous in Earth Sciences & Geology

can you explane is that the humans that went to the mars or they come from mars to erth or somthing more?????

2007-08-13 20:45:09 · 3 answers · asked by pejman e 1 in Astronomy & Space

tel me

2007-08-13 20:42:27 · 8 answers · asked by sweety 1 in Biology

2007-08-13 20:41:08 · 10 answers · asked by Anonymous in Astronomy & Space

2007-08-13 20:38:09 · 2 answers · asked by Anonymous in Chemistry

Explain why its reaction with ammoniacal cuprous chloride and silver nitrate are considered as reactions of an acid?

2007-08-13 20:34:44 · 3 answers · asked by Anonymous in Chemistry

2007-08-13 20:33:57 · 18 answers · asked by Anonymous in Weather

In New Zealand its world maths week & we have to go on website, answer quetsions etc. One question is particualy bugging me & I was wondering if someone could lend a helping hand...? Here it is:

This cipher appeared in an old Royal Air Force pocket book dated 1937. It is a transposition type cipher with a message asking for help.

What is the message?

How many more men need to be sent?

AMVIPI WWYRHI VVITEM VXASHE CWLIEH QERWIG VIXPCM RXIVJI VMRKAS VOSRPE RHMRKK VSYRHW IRHXIR QSVIQI RZZZZZ





Thank you!

2007-08-13 20:25:42 · 3 answers · asked by Anonymous in Mathematics

a) long reflexes
b)short reflexes
c)acquired reflexes

2007-08-13 20:16:10 · 1 answers · asked by hewad k 1 in Biology

I don't think we have EVER been to the moon, my son thinks they really went. I try to prove my point by saying if we went to the moon how come we never made a return trip?

2007-08-13 20:15:30 · 11 answers · asked by Anonymous in Astronomy & Space

for example, hair nails and make up is cosmetology

2007-08-13 20:14:37 · 12 answers · asked by Anonymous in Medicine

local control of the digestive system is done through--?--,where receptors & effectors are controlled with out direct input from the CNS.
a)long reflexes
b)short reflexes
c)parasymphathetic nervous system
d)GALT

2007-08-13 20:10:51 · 3 answers · asked by hewad k 1 in Medicine

Use the definition of the derivative to find the derivative of:
a) -(2/3x)

b) (sq. rt.2x) - x^3

2007-08-13 20:06:17 · 5 answers · asked by Allison 1 in Mathematics

As a kid, I loved breaking into old pieces of technology like radios and alarm clocks, just to see how they work. These days, the only innards I ever get to play with are the insides of computers.

But right now, I'm dissembling a LCD screen and was warned that there are cold cathode tubes with mercury vapor inside of it, and breaking it could cause the mercury vapors to leak. That's dangerous!

Is it safe to continue my hobby of messing around with the insides of technology? Or should I just leave that stuff alone, and leave it to the professionals?

2007-08-13 19:51:52 · 2 answers · asked by Joey T 3 in Engineering