Science & Mathematics - 3 July 2007

the way our hair is- callics,texture,thickness,baldness ect...

2007-07-03 14:40:07 · 12 answers · asked by HAYLEY 3 in Biology

Solve the system of equations by the addition method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent.

-5x + 7y = -40
-2x + 4y = -16
(8, 0)
No solution, inconsistent
(7, 1)
(8, 1)

2007-07-03 14:34:52 · 3 answers · asked by alw0322 1 in Mathematics

Can breathing in too much oxygen cause brain damage?
You know when you breathe in too much air, and afterwards you experience dizziness, etc...

Is this the equivalent of getting high or doing drugs ?? Does it lead to brain damage?

...or is hyperoxia completely benign from the
BRAIN DAMAGE persepctive only

I know it can damage other cells ex. by increasing free radicals in the blood, etc...

Thanks.

2007-07-03 14:34:22 · 6 answers · asked by Anonymous in Medicine

http://i181.photobucket.com/albums/x85/ctti_3/untitled-15.jpg

2007-07-03 14:32:58 · 4 answers · asked by Kelly 1 in Mathematics

Solve the system of equations by the addition method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent.

x + 3y = 6
9x + 4y = 8
(-2, 0)
(1, 1)
No solution, inconsistent
(0, 2)

2007-07-03 14:24:32 · 7 answers · asked by Mark W 2 in Mathematics

Solve the system by substitution.

x - 6y = -1
9x - 7y = 38
(4, 2)
(-5, 2)
No solution
(5, 1)

2007-07-03 14:23:47 · 9 answers · asked by Mark W 2 in Mathematics

http://img241.imageshack.us/img241/2241/scarynt9.jpg


the other day i was walking in my backyard and i almost walked into this spider and im terrified of spiders so i screamed but then i decided to take a picture of it so i did. now im wondering what kind of spider it is. it has some really kewl designes on it. scary to look at though.

2007-07-03 14:20:39 · 9 answers · asked by failurebydesign 1 in Zoology

How far apart are Fremont and Pleasanton?

2007-07-03 14:20:10 · 5 answers · asked by Anonymous in Geography

Three people build a rectangular building 7 m wide, 5 m long, and 6 m high. How many cubic meters does the shed contain?
107 m3
210 m3
18 m3
1470 m3

2007-07-03 14:20:08 · 5 answers · asked by Mark W 2 in Mathematics

The solubility product constant for Sr(IO3)2 is 1.14 * 10^-7. What volume of 0.0250 M S2O3^2- would be required to tirate a 10.00 mL sample of a saturated solution of Sr(IO3)2?

I got this far: 1 mol of S2O3^2- * 1 mol IO3-/ 6 mol S2O3^2- = mol IO3-

2007-07-03 14:19:42 · 3 answers · asked by Alan l 1 in Chemistry

One-half serving of soy sauce contains 385 milligrams of sodium. How many grams of sodium from soy sauce are included in an egg-foo-young dish made from 4 servings of soy sauce? Round results to the nearest tenth of a gram.
3.1 g
96.2 g
154.0 g
0.1 g

2007-07-03 14:19:09 · 6 answers · asked by Mark W 2 in Mathematics

how do you find out what 8/15 x 3/4 =?

2007-07-03 14:13:22 · 7 answers · asked by Anonymous in Mathematics

level enough to the top put a lid on

2007-07-03 14:11:11 · 4 answers · asked by bill h 3 in Mathematics

How do you deal with them?

2007-07-03 13:55:42 · 9 answers · asked by Christian lyncher 1 in Biology

2007-07-03 13:54:58 · 7 answers · asked by cynthia l 1 in Weather

So how can I distribute the sqrt of (u) to the equation (u + 1)^50?

2007-07-03 13:52:56 · 2 answers · asked by Jorm 3 in Mathematics

The equations of L_1 and L_2 are y = mx and y = nx, respectively. Suppose that L_1 makes twice as large an angle with the horizontal (measured counterclockwise from the positive x-axis) as does L_2, and that L_1 has 4 times the slope of L_2. If L_1 is not horizontal, then mn is
(A) sqrt[2]/2
(B) -sqrt[2]/2
(C) 2
(D) -2
(E) not uniquely determined by the given information

2007-07-03 13:52:15 · 2 answers · asked by Anonymous in Mathematics

A recording engineer works in a soundproofed room that is 44.0 dB quieter than the outside. If the sound intensity in the room is 1.20*10^-10 W/m^2, what is the intensity outside?

how do you work this?

2007-07-03 13:50:03 · 2 answers · asked by Anonymous in Physics

1. Average rate of change over specified interval.
f(x)= 4-4x-2x^2 over (3,4). I got -70. Does that seem correct?

2.Find the derivative. f(x)= 9x^2- 2x+7 . My answer is 14+18x. Correct or not?

3. Can someone tell me how to set up for determining the equation of tangent line at given point.

f(x)= (x-4)^2; (5,1)

Thanks.

2007-07-03 13:40:49 · 5 answers · asked by Anonymous in Mathematics

Or is this a myth? What other occurences have you been told that are signs it is going to rain?

2007-07-03 13:40:36 · 14 answers · asked by TML ♥'er 3 in Weather

2007-07-03 13:40:06 · 9 answers · asked by ~♥live your life♥~ 2 in Weather

Does anyone know if the string theory has been proven correct? If its veracity is yet to be experimented, does anyone think it will actually replace point particles used in modern day science?

2007-07-03 13:39:53 · 7 answers · asked by "I think, therefore I AM 3 in Physics

2007-07-03 13:25:23 · 13 answers · asked by Mz. B 2 in Astronomy & Space

2007-07-03 13:20:04 · 8 answers · asked by Sigma D 1 in Zoology

2007-07-03 13:19:00 · 5 answers · asked by Poetry 1 in Mathematics

Not saying any names, but i know a few good friends that turn off EVERY SINGLE thing in the house, everytime they hear some thunder outside. They freak out about it! Here at my house, if theres a storm, i really dont care. I just grab some chips, a soda, and turn up the volume on the computer listening to Hendrix while i think of something fun to do during the storm! Anyways, for the sake of my friends' paranoia, is there any, ANY way to get hit by lightning when you're inside your house, on your computer or watching TV, while there's a MILD thunderstorm outside. What are the odds of getting hit by lightning while doing that? If you can, please give some examples of how you COULD get hit by lightning inside your house. Please help. THANKS!!!!!

2007-07-03 13:12:53 · 5 answers · asked by Anonymous in Weather

What would you do if you were the ONLY one who knew that a Giant Meteorite was going to strike earth in 5 days?

Also, for those who chooses to tell others, how will you get them to believe you?

2007-07-03 13:11:19 · 23 answers · asked by How To Save A Life 2 in Astronomy & Space

I really dont want break the hair drayer or mess up the electricity. i have never used the hair dryer but i broke a transformer using it with an electric skillet. it smelled really bad. please help!

2007-07-03 13:02:15 · 9 answers · asked by princess sparkel 3 in Engineering

2007-07-03 13:00:15 · 2 answers · asked by Anonymous in Geography

2007-07-03 12:58:03 · 10 answers · asked by Hana 3 in Geography