Science & Mathematics - 30 September 2007

im confused im supposed to factor the polynomial and find the zeros...yet i dont know why im wrong...help someone please!

f(x)=(3x^3)-(x^2)-12x+4

this is what i have :(x+2)(x-2)(3x+1)(3x-1)
and the zeros are: -2,2,-1/3,1/3

2007-09-30 07:41:42 · 6 answers · asked by ...i <3 Xavi... 2 in Mathematics

2007-09-30 07:41:23 · 30 answers · asked by P M 1 in Mathematics

A) aldehyde
B) ester
C) acid anhydride
D) alkene

2007-09-30 07:41:08 · 3 answers · asked by Tonnie 1 in Chemistry

A 4.50 L sample of gas at 28 °C and 1.00 atm is changed to 0 °C and 850 torr. What is its new volume?

2007-09-30 07:40:03 · 1 answers · asked by hey there! 1 in Chemistry

a. explains the unity and diversity of life

b. explains how organisms become adapted to their environment throught the differential reproductive successs of varying individuals

c. explains why distantly related organisms sometimes resemble each other

d. explains why some organisms have traits in common

e. all of the above

2007-09-30 07:39:14 · 6 answers · asked by . 6 in Biology

I'm thinking about one of these but I don't know which one. ANY other suggestions would be greatly appreciated as well. Maybe ya'll can think of one that wouldn't come to my mind.

1) The Kuiper Belt
2) The "Wow!" Signal
3) Crop Circles
4) The Philadelphia Experiment
5) Parapsychology (is this a "debatable" scientific topic?)

As I said, please give me your suggstions on others as well! I seriously would LOVE to have them!!!!

Thank You!!!

2007-09-30 07:37:23 · 4 answers · asked by Shelly 3 in Other - Science

How does CH3(CH2)2COOH dissociate in water? What is the cation and anion?

What does CH3CH2NH2 + H20 yield?

2007-09-30 07:32:30 · 2 answers · asked by unknownanonymous999 2 in Chemistry

2007-09-30 07:31:05 · 2 answers · asked by Mercury 2010 7 in Astronomy & Space

A) if you own a dog, you must buy a license
B) if you buy a license, you will not have any money
C) if you do not have any money, you are a bum
conclusion: if you own a dog, you are a bum

if im not right, please tell me what order to write ABC in. the conclusion always stays the same. thanks! (another below)

A) Treasure hunters love the sea.
B) People who love the sea are great swimmers.
C) If a person is a great swimmer, he will win an Olympic medal.
D) Olympic winners smile a lot.
conclusion: Treasure hunters smile a lot.

i thought its either in that order, or the complete opposite DCBA.

all help is much appreciated & i will choose an answer

2007-09-30 07:30:00 · 3 answers · asked by lp 1 in Mathematics

1. How do scientists explain the large amount of light elements in outer planets?

2. Compare the features of jupiter and saturn.

3 How are Uranus and Neptune similar?

2007-09-30 07:29:39 · 1 answers · asked by Noone19 1 in Astronomy & Space

http://i181.photobucket.com/albums/x85/ctti_3/untitled-76.jpg

2007-09-30 07:24:50 · 1 answers · asked by Kelly 1 in Mathematics

A+B+C=195 ................(1)
B+C+D=210.................(2)
C+D+E=196.................(3)
D+E+F=208.................(4)
E+F+G=213.................(5)
A+B+C+D+E+F+G=491....(6)


whats the value of G,A,D ?

Soln given :G=88 , A=68,D=83


How to solve this eqn ?

can anybody please give me some hints which equations to take and solve to find G,A,D ?


please dont provide soln but give hints.

thanks

2007-09-30 07:23:24 · 2 answers · asked by Anonymous in Mathematics

A basketball leaves a player's hands at a height of 2.10 m above the floor. The basket is 2.60 m above the floor. The player likes to shoot the ball at a 38.0° angle. If the shot is made from a horizontal distance of 13.00 m and must be accurate to 0.22 m (horizontally), what is the range of initial speeds allowed to make the basket? Enter your answer to at least four significant digits.

a. Find lowest initial speed
b. Find highest initial speed

2007-09-30 07:22:45 · 1 answers · asked by Anonymous in Physics

besides how much matter is in a given space
and if an object floats or not

2007-09-30 07:18:01 · 1 answers · asked by pazzo 3 in Physics

The temp. of the gas in an aerosol container is 0 degrees Celsius (273 K). To what temp. must this gas be rasied to increase the average kinetic energy of the gas molecules by a factor of three?

2007-09-30 07:03:46 · 2 answers · asked by Anonymous in Chemistry

to an and that a > 0. Show that there is an index N such that a(subn) >0 for all indices n>= N

2007-09-30 07:02:29 · 2 answers · asked by Leo 3 in Mathematics

http://i181.photobucket.com/albums/x85/ctti_3/untitled-74.jpg
the answer was said to be #5 but i dont get it

2007-09-30 06:59:28 · 3 answers · asked by ruby 2 in Mathematics

Trigonometry + Algebra?

2007-09-30 06:58:16 · 4 answers · asked by Jupiter 1 in Mathematics

What is the inverse function of the function y=x^3 - x?

2007-09-30 06:55:09 · 2 answers · asked by me8md 3 in Mathematics

2007-09-30 06:53:36 · 2 answers · asked by spanishfly_100 1 in Mathematics

how do find f^-1 (inverse) for the function f?

f(x) = logˇ2 (-x+3)-5
{log-base-2 (-x+3)-5 }

f(x) = e^(x+2) -3

please show how you got the answer
thank you

2007-09-30 06:51:37 · 3 answers · asked by abc 1 in Mathematics

what type of volcano could form/ errupt?

2007-09-30 06:50:09 · 4 answers · asked by i have questions 2 in Earth Sciences & Geology

i have to push a 100kg box up a 20degree ramp into the truck. (coeff of static friction)=0.9 and coeff of kinetic friction =0.6. my largest pushing force is 1000N. will i be able to push the box up the truck without assistance if i started running?If i stop on the ramp, will i be able to move the box again??

2007-09-30 06:49:56 · 1 answers · asked by berry 1 in Physics

The first step in identifying an unknown sample, we need to determine the empirical formula from percent composition. For an organic compound containing only C, H and O, the laboratory sent these results:
C 40.00 % H 6.71 % O 53.29 %


The next step is to determine the molecular formula from mass spectrum. The laboratory sent these results:
formula weight was found between 118.10 and 123.10

2007-09-30 06:49:20 · 1 answers · asked by Anonymous in Chemistry

How do I calculate the precision of two numbers? The numbers are 77 million and 77,108,414.

2007-09-30 06:49:12 · 1 answers · asked by Kristen K 2 in Mathematics

2007-09-30 06:46:18 · 2 answers · asked by rozy 1 in Biology

Define expanded form??? What is it????????

2007-09-30 06:43:43 · 2 answers · asked by tink7155 2 in Mathematics

2007-09-30 06:40:18 · 2 answers · asked by biakk91 1 in Chemistry

I know people are going to post some really stupid answers so only seriouse answers please.
I have been trying to meditate to open my third eye. When I did it today I heard a little boy say help. Then I asked why and he said he can't. I asked why and he said that some one will hurt him. Then I stopped because I was confused. Was that my imagination ? My house is new and it is not haunted. Could some one give me any advice please?

2007-09-30 06:34:35 · 9 answers · asked by sam 2 in Paranormal Phenomena

2007-09-30 06:33:22 · 3 answers · asked by angel 1 in Medicine