Science & Mathematics - 30 December 2006

ex:
abcde
abcdf
abcdef
abcd1
12345
abcde12345fghij67890

etc... how many are there?

How did you find out?

2006-12-30 06:49:51 · 6 answers · asked by Confused 2 in Mathematics

2006-12-30 06:48:55 · 24 answers · asked by Annie 1 in Astronomy & Space

Would I exist? or would a brother or sister exsist instead of me. Out of all those 300 million sperm cells, was it just the right "one" that made me "me"?

2006-12-30 06:48:33 · 2 answers · asked by ebidmelech 3 in Biology

I make 4.00$ per trash container and 25.cents per vent scent and 1 cent per trash bag. Replace the vent scent monthley and the trash bag once a day times one million

2006-12-30 06:48:28 · 5 answers · asked by Anonymous in Mathematics

I know this is the chain rule, but I'm rather rusty on my calculus techniques at the moment and am struggling:

y=x10^[ (344/825)x+(43/12) ] - c

where c is any real number.

Thank you.

2006-12-30 06:45:16 · 7 answers · asked by Tom 1 in Mathematics

2006-12-30 06:42:52 · 11 answers · asked by Anonymous in Mathematics

2006-12-30 06:42:51 · 2 answers · asked by aaron b 1 in Botany

2006-12-30 06:42:01 · 10 answers · asked by Anonymous in Mathematics

2006-12-30 06:41:34 · 8 answers · asked by Anonymous in Mathematics

2006-12-30 06:38:21 · 4 answers · asked by chweet16 1 in Chemistry

This is what my maths tutor at college told me whilst we were doing exponential functions. But I have heard about a Planck number. Is this the smallest amount of energy possible? So when the water reaches this temperature above room temperature does it then drop to room temperature again? Is my tutor wrong?

2006-12-30 06:37:02 · 9 answers · asked by eazylee369 4 in Physics

Selection

2006-12-30 06:33:42 · 2 answers · asked by Arnold M 1 in Biology

CuSO4(s)--->Cu2+ with 2+ being on the top(aq)+SO2-4 with 2- on top while 4 on bottom(aq)

She placed 0.8 g of CuSO4(s) in a calorimeter iwth 43 g of water at an initial temperature of 18.3 degrees celcius. As the CuSO4(s) disslved in the water, the temperature rose to 20.2 degrees celcius.What value of enthalpy H can Teresa obtain from her data

How much heat will be tranferred when 0.54 mol sulfur reacts with 0.75 mol oxygen according to the following equation
2S(s)+3O2(g)--->2SO3(g) enthalpy change is -790 kJ
How many moles of SO3 will be produced?

I am really stuck on these two problems, would it be possible if you people could help me out on how to figure out this problem

2006-12-30 06:31:48 · 1 answers · asked by silentcargo 3 in Chemistry

legs and necks. Explain this evidence using the Theory of Evolution by Acquired Characteristics or using the Theory of Evolution by Natural Selection

2006-12-30 06:30:39 · 3 answers · asked by Arnold M 1 in Biology

2006-12-30 06:30:22 · 2 answers · asked by Anonymous in Mathematics

2006-12-30 06:28:42 · 3 answers · asked by oscarvella 1 in Engineering

If you're gonna say it can't be done, don't bother, cause I don't believe that.

2006-12-30 06:27:14 · 3 answers · asked by Anonymous in Botany

2006-12-30 06:25:31 · 2 answers · asked by Jim 1 in Biology

2006-12-30 06:24:25 · 13 answers · asked by camillehortensiazajac 1 in Mathematics

2006-12-30 06:23:28 · 3 answers · asked by Anonymous in Mathematics

f(x)=(9-x^2)^(3/5)

how do i do the work for this problem and which answer is correct?

A) 0 B) 3 C) -3 and 3 D) -3, 0, and 3 E) none of the above

2006-12-30 06:20:20 · 2 answers · asked by GHAAD 4 in Mathematics

The temperature at sea level is 86oF. If we ascend to an altitude of 2,500 feet, what is the temperature at that height?

2006-12-30 06:19:33 · 2 answers · asked by nice too meet you. 4 in Chemistry

2006-12-30 06:19:16 · 5 answers · asked by Anonymous in Mathematics

What is there that I can do to help the people making the suit against them? Will it be effective before the project is up and running?

2006-12-30 06:18:27 · 3 answers · asked by magpiesmn 6 in Astronomy & Space

2006-12-30 06:08:20 · 2 answers · asked by Master 2 in Chemistry

No contacts, blindness, eye damage or cataracts. My biology teacher in high school had this, and it was months before I realized it. I was curious about how rare this is.

2006-12-30 06:07:11 · 25 answers · asked by Zelda Hunter 7 in Biology

2006-12-30 06:05:47 · 4 answers · asked by julesy 1 in Biology

-5x + 10 > 70

and this one

-10 > .5 d

2006-12-30 06:03:39 · 8 answers · asked by Anonymous in Mathematics

Could anyone know what is "China Clay Washing Plant " mean? (I do know what is china clay.)?

Thank you in advance.

kanzli

2006-12-30 06:01:54 · 3 answers · asked by kanzli 1 in Earth Sciences & Geology

1)Find the value of c that makes this trinomial a perfect square.
x2 + 17x + c

if u know how to answer this... please explain

2) Write this expression in the standard form a + bi.
a) 9i(2 - 3i) b) (3 - 4i)(2 + i) c) 10 / (3-4i)

i have no idea what the 'i' means, please explain what 'i' is if possible.

3) Find the exact solution for this equation by completing the square.
2x2 - 7x + 12 = 0
Answer the question using the form x = [A +/- Bi (square root) C] / D where A is positive.

i think if i understand what 'i' is, i might be able to do this.. but just to make sure.

2006-12-30 06:01:44 · 12 answers · asked by yassem1ne 2 in Mathematics