Science & Mathematics - 29 September 2007

What is the domain of the following polynomial

f(x)=( 4x ) / ( x^2 + 2x -6 )

2007-09-29 13:13:46 · 3 answers · asked by brettmhannan 1 in Mathematics

I am scheduled for an upcoming colonoscopy. I was told by my physician to not use and amphetamines, gingko biloba, metabolife, herbalife, diet pills etc... Basically no stimulants. Can someone please explain to me why this is and what are the dangers if i do have something in my system. Thanks.

2007-09-29 13:09:43 · 2 answers · asked by hushlam 1 in Medicine

explain briefly, please.

2007-09-29 13:05:32 · 13 answers · asked by angelacute_girl 1 in Chemistry

What is the Temperature in your state?

Ex.
Montana; +15, Overcast

2007-09-29 13:04:38 · 9 answers · asked by Anonymous in Weather

What does it turn into(over time)?

2007-09-29 12:55:52 · 4 answers · asked by ... 2 in Biology

name (like cow) or scientific name (like bovine)

2007-09-29 12:50:42 · 7 answers · asked by Anonymous in Zoology

2007-09-29 12:41:59 · 1 answers · asked by Anonymous in Engineering

What happens to the arctic circle and the tropic of cancer during the summer solstice?

2007-09-29 12:38:17 · 3 answers · asked by Anonymous in Astronomy & Space

A 50.5kg crate is at rest on a level floor and the coeffecient of kinetic friction is 0.384. The accleration of gravity is 9.8m/s2. If the crate is pushed horizontally with a force of 279.361 newtons, how far does it move in 2.69s. (in meters)

2007-09-29 12:35:22 · 1 answers · asked by Handiman 3 in Physics

One strategy in a snowball fight is to throw a snowball at a high angle over level ground. Then, while your opponent is watching that snowball, you throw a second one at a low angle timed to arrive before or at the same time as the first one. Assume both snowballs are thrown at 25.0 m/s. The first is thrown at an angle of 70 degrees with respect to the horizontal.
a) At what angle should the 2nd snowball be thrown to arrive at the same point as the 1st?
b) How many seconds later should the second snowball be thrown after the 1st in order for both to arrive at the same time?

2007-09-29 12:28:26 · 1 answers · asked by boy101 3 in Physics

and why??

2007-09-29 12:27:30 · 10 answers · asked by Anonymous in Engineering

y1(x) = 1/ square root of 9 - x2
y2(x) = x^3 + x / x - 2

Describe all the asymptotes (horizontal, oblique or verticals) to these graphs?

Sketch each graph

2007-09-29 12:24:05 · 1 answers · asked by Anonymous in Mathematics

traveling 130 km in 2.40 h.
What is his total displacement?

2007-09-29 12:23:51 · 2 answers · asked by Alan H 1 in Physics

2007-09-29 12:21:25 · 5 answers · asked by Anonymous in Earth Sciences & Geology

a) a particle moves along the x - axis with velocity v = dx/dt = f(x). Show that its acceleration is f(x)f'(x)

b) The volume of a sphere is decreasing at the rate of 12pim^3/min. Find the rate at which the radius and the surface area are changing at the instant when the radius is 20m. Also find approximately how much the radius and surface area may be expected to change in the following 6 sec.

2007-09-29 12:18:26 · 1 answers · asked by DaOne 1 in Mathematics

2007-09-29 12:18:07 · 2 answers · asked by m.s. 2 in Astronomy & Space

http://img254.imageshack.us/img254/7421/elewe7.jpg I know the total resistance is between point A and B is 12 k but I don't understand how to simplify this circuit.

2007-09-29 12:12:15 · 3 answers · asked by Chris 2 in Engineering

If the radius is decreased by X in , express the area of the image as a function of x. what are the domain and range of A=f(x)?

2007-09-29 12:10:09 · 1 answers · asked by ohoma 1 in Mathematics

2007-09-29 12:08:26 · 3 answers · asked by Anonymous in Zoology

2x+(8/9x)

2+(8/9)???

what happens to (8/9x)??

2007-09-29 12:04:30 · 2 answers · asked by m_carl 1 in Mathematics

2007-09-29 11:59:19 · 9 answers · asked by alphajoe 1 in Engineering

2007-09-29 11:58:13 · 3 answers · asked by lola 1 in Engineering

What mass of HCL in grams is required to react with 0.750 g AL(OH) 3? What mass of water is grams is prodcuced?
here is what I did:
-750 ALOH3 X 1 mol/77.8 = .0096 moles AL(OH) 3
0.0096 mol AL (OH) 3 X 3 mol HCL
0.0289 X 35.04 = 1.0126 g HCL
.0096 mol AL ( OH) 3 X 3 mol H20 = 0.0288
0.0288
31.88 g H20

2007-09-29 11:51:19 · 2 answers · asked by Melissa E 1 in Chemistry

2007-09-29 11:50:14 · 8 answers · asked by O P 1 in Chemistry

2007-09-29 11:49:21 · 3 answers · asked by Manofthewest 5 in Geography

2007-09-29 11:49:18 · 2 answers · asked by O P 1 in Chemistry

THIS IS NOT HW
Plz write the prime factorization for the numbers 2-40, if you cant do all, do has much as possible, If you do all all numbers CORRECTLY you will get the 10 POINTS
Any help, much appreciated
*** Use exponents if necessary***
***Numbers 2-40***

2007-09-29 11:48:21 · 3 answers · asked by Skillz 2 in Mathematics

2000 degrees Celsius

2007-09-29 11:44:53 · 4 answers · asked by :) 2 in Other - Science

okay here is the problem.. A 60kg mass is suspended from a rope which is threaded over a mass less pulley and then attached to a hook on a vertical wall. Describe a free body diagram for the mass and another for the hook and show how each is in equilibrium. Okay..so there is a force between the hook and the pulley, but what about the hook and the wall? HELP!!

2007-09-29 11:44:00 · 2 answers · asked by jody_parch 1 in Engineering

1. CaCl2
2.CO2
3.H2O
4.K2O
5.NaF
6.CH4
7.SO3

2007-09-29 11:42:43 · 2 answers · asked by anonymous 3 in Chemistry