Science & Mathematics - 11 July 2007

2007-07-11 05:19:27 · 35 answers · asked by WEBCAM 1 in Mathematics

I've realized my left eye is farsighted and my right eye is nearsighted. I don't know whats the name for it, does anybody know its correct name and please give me some kind of info for it, it would really help.

2007-07-11 05:19:19 · 5 answers · asked by Anonymous in Physics

a goat needs to eat 1/2 of the grass in a circular field but must be pinned on the outside what diameter rope do u need? exactly 1/2 of the grass

2007-07-11 05:18:50 · 2 answers · asked by Anonymous in Other - Science

If r = 4 m and h = 9 m, find the volume of the right cylinder .

2007-07-11 05:17:56 · 4 answers · asked by Anonymous in Mathematics

2007-07-11 05:16:06 · 2 answers · asked by mgrg40 2 in Astronomy & Space

The base of a triangular prism is an equilateral triangle with a perimeter of 42 cm. If the height of the prism is 10 cm, what is the lateral area?

2007-07-11 05:15:14 · 4 answers · asked by Anonymous in Mathematics

When converting the subnet mask 224 into binary are you dividing the numbers by 128, 64,32,etc? I'm kind of confused..

2007-07-11 05:15:05 · 1 answers · asked by handsomeblkbrotha 1 in Engineering

What is the formula to calculate percentage???? in Excel?????????????????

2007-07-11 05:10:44 · 5 answers · asked by Anonymous in Mathematics

2007-07-11 05:10:43 · 9 answers · asked by zebbie g 2 in Zoology

if the perimeter of the field? Simplify.

2007-07-11 05:10:42 · 3 answers · asked by Anonymous in Engineering

MEPs and Architecturals.

2007-07-11 05:10:32 · 6 answers · asked by j4j1v 1 in Engineering

2007-07-11 05:09:25 · 13 answers · asked by ILOVEU 5 in Astronomy & Space

Find the average slope of this function on the interval ( -2 , -1 ).

By the Mean Value Theorem, we know there exists a c in the open interval ( -2, -1 ) such that f ' (c) is equal to this mean slope. Find the value of c in the interval which works

2007-07-11 05:07:13 · 3 answers · asked by Anonymous in Mathematics

2007-07-11 04:59:11 · 19 answers · asked by rachna gupta 1 in Weather

x = 2*arccos((G-3)/3) - sin(2*arccos((G-3)/3)

if it helps, G must be between 0 and 6. Any help would be greatly appreciated.

2007-07-11 04:56:59 · 4 answers · asked by dbaum295 2 in Mathematics

When i was a girl roughly 20 years ago I used to stare at the sun (i had no idea) and it didn't hurt, but now I can't as it's too bright. Has the sun got brighter/stronger?

2007-07-11 04:53:45 · 17 answers · asked by willow 6 in Astronomy & Space

2007-07-11 04:52:36 · 8 answers · asked by Anonymous in Zoology

Can someone confirm what the derivative of

e^1/x

is, and how it is derived?

2007-07-11 04:48:53 · 4 answers · asked by Anonymous in Mathematics

There are 3 answers that I know of. 2 3 letter words and 1 5 letter word.

2007-07-11 04:48:49 · 14 answers · asked by hkbillyraybittybuddy 1 in Physics

why cant you fly straight across the earth and reach space

2007-07-11 04:47:19 · 22 answers · asked by Bee D 1 in Astronomy & Space

its a philips microcontroller

2007-07-11 04:28:52 · 1 answers · asked by hrajesh2004 1 in Engineering

I just need help with these 3 problems.

1. If the United States imports increased 20% and exports decreased 10% during a certain year, the ratio of imports to exports at the end of the year was how many times the ratio at the beginning of the year?
A) 12/11
B) 4/3
C) 11/8
D) 3/2
E) 2

2. If it takes Mark twice as long to earn $6 as it takes Carl to earn $4, what is the ratio of Mark's pay per hour to Carl's pay per hour?
A) 2:1
B) 3:1
C) 3:2
D) 3:4
E) 4:3

3. The ratio of the arithmetic mean of two numbers to one of the numbers is 3:5. What is the ratio of the smaller number to the larger?
A) 1:5
B) 1:4
C) 1:3
D) 1:2
E) 2:3

2007-07-11 04:26:58 · 6 answers · asked by Anthony W 2 in Mathematics

Solve ea. of the following systems by substitution. Can some please help me and show me how to work? Thank you.

1. 5x – 2y = -5
y – 5x = 3

2. 8x – 4y = 16
y = 2x – 10

3. 4x – 12y = 5
-x + 3y = -1

2007-07-11 04:26:21 · 10 answers · asked by associates07 1 in Mathematics

http://images.google.com/images?um=1&tab=wi&q=robin%27s%20eggs

2007-07-11 04:24:03 · 2 answers · asked by Calchas 3 in Zoology

Hi, i'm looking for a clear explanation as to what transformers are. What i know is that they are something to do with coils of wire round a core of a metal, there's some kind of inductance there, and it all has to do with an electro motive force, and what in god's name has the ratio of primary to secondary turns have to do with anything ?
Anyone who can explain these things will get 5 whole points, or whatever the amount of points you get for getting the answer right is.
Thanks.

2007-07-11 04:22:06 · 7 answers · asked by David M 1 in Physics

gave some example>

2007-07-11 04:21:23 · 2 answers · asked by Anonymous in Engineering

I was given a best answer to a question I posted involving the void. Bekki B informed me that I misunderstand what the univeverse expanded into. Bekki B states that all the space there is is what the universe expaned into! This means, by definition there can be only be one universe in existance, many others disagree with this. It is becomming obvious to me that everyone is leary of going past the conclusions that are based on the limits of what physistists know down to the last 10-43 sec in time after the big bang came into being. A Swiss physist claims that this time represents the life span of the singularity and that was a state of matter that science does not recognize. Even the most famous equasion of all scientific history, E=MC squared breaks down here, the onlypart of it that existed at that time was the E, therefore the equation was meaningless. The first law of physics to kick in was thermodynamics when the total cold of the void began to absorb the heat of the singularity.

2007-07-11 04:20:58 · 7 answers · asked by johnandeileen2000 7 in Astronomy & Space

2007-07-11 04:20:50 · 11 answers · asked by Anonymous in Astronomy & Space

When a molecule impinges on a receptor on a nerve cell in our nose, the receptor recognizes the molecule by its shape. If the shape is 'right' the nerve cell fires and ultimately we experience a sensation of smell. But the molecule itself only has "shape" it has no "smell".

If you disagree, (ie if you think the molecule has BOTH "shape" and "smell" ) are you saying "shape of a molecule" and "smell of a molecule" are two distinct physical properties of a molecule that just magically go together? If that's not what you mean, please explain what you mean.

2007-07-11 04:19:22 · 7 answers · asked by ontheroad 2 in Other - Science

I have a few math questions? Someone please help me.?




thank you so much in advance, I didn't get a chance to go over all these and really needed some help. No I am not trying to get someone to do all my work for me, i have already completed ,ost of it, just some of the ones I was stuck and taking a lot of time.

Additional Details

9 minutes ago
Thank you everyone, been so helpful and no one tried to be rude! Cool. Some more I am now stuck on:

1) Combine like terms:
-3x2 + 8x – 7x2 + 9 + 2x – x2 + 11

2) Solve for x:
5x – 12 = 4x + 5

3) Solve for x:
-3(4x + 3) – 2 = 7 – 2x + 3

4) Solve for x:
(x + 3)/4 – 3/2 = (x + 4)/8

5) please help me with translating this to an algebra statement; you don't have to solve:
Twice the difference of seven times a number and four yields the same result as the same number increased by six.

2007-07-11 04:14:13 · 12 answers · asked by princessmommy05 2 in Mathematics