Science & Mathematics - 29 August 2007

what is the blank fill in?

2007-08-29 12:34:32 · 7 answers · asked by Anonymous in Mathematics

help me with this equation?

solve for Z

x=1/yz

2007-08-29 12:34:12 · 5 answers · asked by Anonymous in Mathematics

2007-08-29 12:34:00 · 7 answers · asked by Anonymous in Mathematics

2007-08-29 12:31:59 · 2 answers · asked by jamie d 2 in Chemistry

2007-08-29 12:31:25 · 3 answers · asked by Anonymous in Geography

are plasma balls supposed to make a whiny noise?
plasma ball: http://upload.wikimedia.org/wikipedia/commons/2/26/Plasma-lamp_2.jpg

2007-08-29 12:29:00 · 1 answers · asked by Alex 3 in Other - Science

(15 * 32) / 20 + 45 - 19 =
(480)/20 + 45 - 19
24 + 45 - 19=
69- 19 =
50

Is 10.43 or 50 the correct answer ?

2007-08-29 12:28:38 · 7 answers · asked by Anonymous in Mathematics

I just need to know the first step of how to do this proof. Please help me!

(1+cos x)(1-cos x) = sin2 x

IMPORTANT sin2 is really sine squared but I couldn't type an exponent

2007-08-29 12:28:37 · 5 answers · asked by I love JB!!! 4 in Mathematics

2007-08-29 12:25:54 · 4 answers · asked by Z Z 2 in Earth Sciences & Geology

Estimate the difference to the nearest whole number.
17.846-3.05
Use a conjunction to combine sentences to form one sentence with a compound predicate. Underline each simple predicate in the compound predicate.
The Romans conquered the Etruscans. The Romans learned about architecture from them.

2007-08-29 12:25:19 · 2 answers · asked by peaches 2 in Mathematics

I'm trying to find the inverse of f(x) = x/(x-5)...and i cant figure it out, can someone help me?

2007-08-29 12:23:29 · 2 answers · asked by Kurt 3 in Mathematics

2007-08-29 12:23:18 · 5 answers · asked by danz2289 1 in Zoology

2007-08-29 12:23:13 · 10 answers · asked by ol_skater_boy 2 in Astronomy & Space

Why is it easier to convert meters to centimeters or or millimeters than it is to change yards to feet or inches?

2007-08-29 12:22:34 · 7 answers · asked by Jill 1 in Mathematics

I want to get an 80mm APO for astrophotography. Help me decide....Orion ED....Meade ED APO......Williams optics megrez Fl.....Astro tec AT80EDT.....or what...

2007-08-29 12:22:24 · 5 answers · asked by comethunter 3 in Astronomy & Space

7+6y^2 is all under the square root

2007-08-29 12:21:32 · 5 answers · asked by Deutschjoe 3 in Mathematics

A 74-kg biker accelerates from rest to a final speed v. If the total work done on her during that interval is 3000J, what is v?

2007-08-29 12:21:01 · 1 answers · asked by Anonymous in Physics

2007-08-29 12:20:11 · 4 answers · asked by judas 2 in Zoology

1. A flat circular plate of copper has a radius of .383 m and a mass of 27.7 kg. What is the thickness of the plate? Answer in units of m.
(please show work so i can learn the steps. THANK YOU)

2) The mass of the planet Saturn is 5.64 X 10 to the 26 power kg and its radius is 6 X 10 to the 7 power. Calculate its density. Answer in units of km/m to the 3rd power

(please show work/steps of how you came to the solution - thank you.)

3.)Water flows into a swimming pool at the rate of 9.27 gal/min. If the pool dimensions are 33.4 ft wide, 43.1 ft long, and 15.1 ft deep, how long does it take to fill the pool? (1 gallon = 231 cubic inches). Answer in units of minutes.

(THANK YOU PEOPLE - please show work )

2007-08-29 12:18:40 · 2 answers · asked by mimi j 1 in Physics

can someone explain how to get answers for there problems?

whats the x-intercept for the line y= -5x-9?

find all solutions to the equation l7x+4l =18

factor the polynomial x^2-5x-36

and solving x^2-9x=36

2007-08-29 12:17:01 · 3 answers · asked by karate kicka girl 2 in Mathematics

2007-08-29 12:16:21 · 3 answers · asked by susieque 4 in Chemistry

maths

2007-08-29 12:15:18 · 9 answers · asked by brown n 1 in Mathematics

2007-08-29 12:13:53 · 5 answers · asked by litswtsmile 1 in Mathematics

He has been here for awhile. Usually he's harmless. What he has done is; knocked things off my mantle and off my shelf in the laundry rm, he plays with my computer and picks the songs I will sing, and he keeps changing my darn clocks ahead. He doesn't hurt anybody. He won't give me his name, and it's frustrating. Please help

2007-08-29 12:09:24 · 24 answers · asked by maev 3 in Parapsychology

1. 25 - 6 (4-2x) + 3x = 5 - 13x

2. 3(2x+7)=4 (3x-?)
6 10

2007-08-29 12:08:25 · 1 answers · asked by meme123 2 in Mathematics

2007-08-29 12:07:55 · 3 answers · asked by petrochirus 2 in Zoology

2007-08-29 12:03:17 · 2 answers · asked by judas 2 in Medicine

2007-08-29 11:53:21 · 11 answers · asked by tati e 3 in Earth Sciences & Geology

2007-08-29 11:52:56 · 5 answers · asked by Super 5 in Earth Sciences & Geology

2007-08-29 11:49:37 · 1 answers · asked by mary 1 in Mathematics