Science & Mathematics - 10 July 2007

k^2 -k -20 = (k)^2 + (4 +-5)k + (4)(5)= (k+4) (k+5)

2007-07-10 04:31:10 · 6 answers · asked by Anonymous in Mathematics

Why is the number "seven" pronounced with two syllables?!

2007-07-10 04:21:04 · 16 answers · asked by Lola 2 in Mathematics

I can't remember - if the error is divisible by 9, then it is a transposition error?? There were a couple others too. If anyone could help, I'd appreciate it.

2007-07-10 04:19:09 · 7 answers · asked by Jen 3 in Mathematics

1 / x + 1/y is equal to what ??

2007-07-10 04:17:07 · 9 answers · asked by Marcela M 1 in Mathematics

2007-07-10 04:13:07 · 6 answers · asked by Anonymous in Zoology

I would like to learn phrases in french like "your my best friend" and things like that. Will someone please tell me what it is is french?

2007-07-10 04:11:51 · 7 answers · asked by Anonymous in Weather

Please help me with this problem...

f(x) = 4x^2 - x + 3 ......... find f(-2)

2007-07-10 04:11:26 · 5 answers · asked by Marcela M 1 in Mathematics

2007-07-10 04:09:27 · 7 answers · asked by Anonymous in Astronomy & Space

a) 3
b) 2
c) 1
d) 4

2007-07-10 04:08:47 · 10 answers · asked by Play girl $ 2 in Biology

Informations of the component of a hand drill

2007-07-10 04:01:30 · 4 answers · asked by Wong Y 1 in Engineering

Theorem: If L is algebraic over M, and M is algebraic over K, then L is algebraic over K
Proof: Pick x in L. Then since L is algebraic over M, there exist m_0, m_1,...,m_n in M such that
m_n*x^n+m_(n-1)*x^(n-1)+
...+m_1*x+m_0=0.
Since this is a polynomial in K(m_0, m_1,...,m_n), immediately we have that x is algebraic over K(m_0, m_1,...,m_n). Thus
[K(m_0, m_1,...,m_n,x):K(m_0, m_1,...,m_n)] [K(m_0, m_1,...,m_n):K] Hence
[K(m_0, m_1,...,m_n,x):K]=
[K(m_0, m_1,...,m_n,x):K(m_0, m_1,...,m_n)]
*[K(m_0, m_1,...,m_n):K] So K(m_0, m_1,...,m_n,x) is a finite extension of K, hence K(m_0, m_1,...,m_n,x) is algebraic over K. This implies x is algebraic over K. Since x was an arbitrary element of L, it follows that L is algebraic over K.

2007-07-10 03:57:38 · 2 answers · asked by Anonymous in Mathematics

Say your husband wants a kid, and you don't. So you are secretly taking birth control pills or getting shots or whatever. Obviously you haven't gotten pregnant, so your husband suggest going to a fertility doctor. If they do blood work or urine tests, will they be able to tell that you are on the Pill still? Can they tell your husband without your permission?

2007-07-10 03:57:21 · 11 answers · asked by Whiskey Tango Foxtrot 4 in Medicine

2007-07-10 03:55:56 · 7 answers · asked by captbullshot 5 in Engineering

what is the common item of the dresses of the people living in costal area?

2007-07-10 03:52:50 · 6 answers · asked by ashutosh g 2 in Weather

That interact with the radiation the same way the a mirror would with regular visible light?

2007-07-10 03:45:54 · 5 answers · asked by Anonymous in Physics

2007-07-10 03:44:00 · 1 answers · asked by joyson d 1 in Engineering

in the past millions upon millions of grass eating beasts roamed the world they must have belched, farted and sent meathane into the air. some times I wonder about experts.

2007-07-10 03:41:05 · 13 answers · asked by Anonymous in Weather

2007-07-10 03:39:00 · 6 answers · asked by bmw 1 in Astronomy & Space

Its true the earth is giving up her secrets these days by leaps & bounds (as they say) in all fields, from scientists to explorers, even treasure seekers are making discovery upon discovery...do you think there will come a time when we have nothing left to discover?

2007-07-10 03:37:19 · 6 answers · asked by silkensilhouette 4 in Earth Sciences & Geology

2007-07-10 03:36:13 · 6 answers · asked by katherine o 1 in Zoology

2007-07-10 03:34:47 · 2 answers · asked by Allergic To Eggs 6 in Medicine

We hear no end to the Jewish Holocaust, and so it should be.

Those who forget History are doomed to repeat it.

Which prompts this question.

Why does the gay community allow us to forget that it was Nazi policy to exterminate Europe's homosexuals?

2007-07-10 03:33:33 · 9 answers · asked by Anonymous in Other - Alternative

2007-07-10 03:29:42 · 2 answers · asked by Juan Paolo 1 in Engineering

i need to know the subjects like trigonometry ect.

2007-07-10 03:22:11 · 8 answers · asked by Anonymous in Mathematics

2007-07-10 03:17:31 · 5 answers · asked by Anonymous in Chemistry

2007-07-10 03:07:53 · 7 answers · asked by sri ranjani 1 in Mathematics

In first stage of knowledge, Yes. In second stage of knowledge when every planet rotates including sun.?

2007-07-10 03:04:46 · 5 answers · asked by Anonymous in Astronomy & Space

Find all positive values for k for which each of the following can be factored.
I need help getting to this answer. I am not sure which formula should I use to solve it. I am not looking for just an answer but more the proper way to solve it

2007-07-10 03:02:04 · 5 answers · asked by Anonymous in Mathematics

2007-07-10 02:53:34 · 3 answers · asked by ? 2 in Mathematics

given that they impact in such a way that deflection is impossible.

I want to hear any answer, scientific, philosophical, or just plain goofy, as long as it's relevant.

2007-07-10 02:51:06 · 12 answers · asked by Jake 2 in Astronomy & Space