Science & Mathematics - 10 December 2007

The function is f(x) =

1
-------------------------------
x^3 + 12x^2 + 48x + 43

I graphed it in my calculator, and it came out to be a parabola. Parabolas do not pass the horizontal line test to see if it is a one to one function or not. As far as I know, if a function is not one to one, then the inverse does not exist.

I want to find out another way to find out that there is no inverse to this function other than from graphing.
I know you can interchange x and y, but I don't know what to do after I completed that step. Can anyone point me in the right direction?
Thanks - phuoc

2007-12-10 02:15:05 · 3 answers · asked by Phuoc 2 in Mathematics

2007-12-10 02:14:37 · 4 answers · asked by Trathod 1 in Astronomy & Space

ok so here is the chemistry problem i have been working on...and cant seem to figure out...any ideas anyone on how to complete and answer this problem??

Calculate the wavelength of a photon emitted from an atom which had an electron leave the third quanta level and return to the second level.

2007-12-10 02:11:16 · 3 answers · asked by Riley 1 in Chemistry

2007-12-10 02:09:44 · 7 answers · asked by shakelia 1 in Mathematics

2007-12-10 02:09:29 · 10 answers · asked by Anonymous in Astronomy & Space

2007-12-10 02:07:55 · 1 answers · asked by Anonymous in Chemistry

i need this answer by 7 15

2007-12-10 02:05:46 · 3 answers · asked by krazy blonde 1 in Geography

keep getting wrong answer

2007-12-10 02:05:24 · 5 answers · asked by ANDREA K 1 in Mathematics

2007-12-10 01:59:37 · 1 answers · asked by tory t 1 in Chemistry

2007-12-10 01:58:19 · 20 answers · asked by earlhoch 1 in Astronomy & Space

Here is the problem illustrated...
http://flickr.com/photos/98443290@N00/2100876010/

2007-12-10 01:57:54 · 5 answers · asked by Anonymous in Mathematics

I need the integrals of
a) (e^x sec e^x tan e^x) dx / (( 36-(sec e^x)^2)^.5)

and

b) e^(2ln arctan x) dx / (1+x^4)

2007-12-10 01:57:19 · 2 answers · asked by Anonymou$ 3 in Mathematics

2007-12-10 01:54:45 · 10 answers · asked by Anonymous in Earth Sciences & Geology

it is sprinkling and 55 degrees here in East TN...it's been like this for a few days now...lazy weather, I can't seem to get anything done...lol..how's your forcast right now? (where are you located?)

2007-12-10 01:47:56 · 12 answers · asked by Radertastic 5 in Weather

2007-12-10 01:47:30 · 1 answers · asked by taisyu 2 in Engineering

2007-12-10 01:46:06 · 9 answers · asked by Sarah 1 in Geography

Simplify. 2 sqrt 12+4 sqrt of 27. The last one is (6+ sqrt 6)*(6- sqrt 6). I really appreicate if someone can help me on these.

2007-12-10 01:42:36 · 5 answers · asked by Kat 1 in Mathematics

49x^2 - 588x + 9y^2 - 144y + 1899 = 0

That is the problem, please help me!!!

2007-12-10 01:42:00 · 1 answers · asked by CHSKicker08 2 in Mathematics

also can someone state center radius

2007-12-10 01:40:36 · 3 answers · asked by referencearea 2 in Mathematics

K2SO4(aq)+ Ba(NO3)2(aq) Ba(SO4)(s)+ KNO3(aq)


HCl(aq)+ Zn(s) H2(g)+ ZnCl2(aq)


HCl(aq)+ AgNO3(aq) HNO3(aq)+ AgCl(s)


HCl(aq)+ KOH(aq) H2O(l) + KCl(aq)


Na(s)+ Cl2(s) NaCl(s)

H2SO4(aq)+ NaOH(aq) H2O(l)+ Na2SO4(aq)

2007-12-10 01:40:32 · 3 answers · asked by Anonymous in Chemistry

solve for r: c=2(pi)r

2007-12-10 01:40:22 · 4 answers · asked by Anonymous in Mathematics

You visit your favorite bakery and decide to buy four cookies. The bakery sells three different types of cookies: chocolate chip, peanut butter, and sugar cookies with sprinkles. How many different four cookie selections can you select from this bakery? For example, one selection could be two chocolate chip, one peanut butter, and one sugar cookie with sprinkles.

2007-12-10 01:38:40 · 3 answers · asked by Anonymous in Other - Science

2007-12-10 01:35:47 · 4 answers · asked by calcnot 1 in Mathematics

do they?

2007-12-10 01:30:51 · 3 answers · asked by Anonymous in Zoology

12x^2-27

i think this is right but not sure
3(4x^2-9)?

2007-12-10 01:29:36 · 6 answers · asked by ersan b 4 in Mathematics

3x+5y=15

2007-12-10 01:28:23 · 5 answers · asked by ersan b 4 in Mathematics

Is it more venomous than the most venomous land snake? How dangerous are they? Are they more dangerous than other marine animals?

2007-12-10 01:22:04 · 2 answers · asked by Anonymous in Zoology

for a project at school

2007-12-10 01:18:56 · 6 answers · asked by Anonymous in Weather

I bought some fancy crackers that sounded yummy,and looked pretty. Nice for entertaining. Later on at home when I read the label,I found out one of the ingrediants are hemp seeds.I am in a profession that is subject to random drug testing.I am now afraid to eat these pretty crackers. A few months ago,a co-worker was fired for flunking a test. She hired a attonrney and got her job back. The rest of us got an E-mail saying we could not use Hemp as a excuse for failing a drug test,and that we were not to use ANY Hemp products. She used the Hemp defense and our employer closed the hole behind her. It was a fluke that I read the packet ingrediants,because the hemp was not in big letters.I cuold of naivly eaten them.This worries me. Please advise

2007-12-10 01:16:27 · 4 answers · asked by Snacky 6 in Medicine

2007-12-10 01:15:17 · 6 answers · asked by Guy 1 in Weather