Science & Mathematics - 13 November 2007

Which expression gives the value of sin beta/b?

And here is the link to the problem: http://i7.tinypic.com/80v0h0l.gif

a. (sin 81°)/3.4
b. (sin beta)/3.4
c. (sin alpha)/3.4
d. 3.4 inches

2007-11-13 06:36:43 · 8 answers · asked by sillyboys_trucksare4girls 2 in Mathematics

I was wondering if
f(x) = 1-x^3 (f:D ->R)
is an "on to" function. I did get to x= 1-y (with a root to the 3rd)
but i couldn't decide if the function is "on to"

thanks for the help

2007-11-13 06:34:12 · 2 answers · asked by Anonymous in Mathematics

Many passages in the Bible refer to God "stretching out the heavens" "like a curtain"
Anyone have any theories or explanations that might offer insight to this? Interesting that 96 percent of the universe is a mystery to us.

2007-11-13 06:31:52 · 8 answers · asked by paul h 7 in Astronomy & Space

Many passages in the Bible refer to God "stretching out the heavens" "like a curtain"
Anyone have any theories or explanations that might offer insight to this? Interesting that 96 percent of the universe is a mystery to us.

2007-11-13 06:31:31 · 3 answers · asked by paul h 7 in Physics

Don't you think that they are the same people as they were before they died?! I wonder why we think they're more important without their bodies. (I know they're more mysterious)(People we wouldn't give a "flip" about in this world become "super special" when they lose their bodies...It doesn't really matter what kind of person they were.)

2007-11-13 06:31:06 · 10 answers · asked by Deenie 6 in Paranormal Phenomena

Find the sum of the series if |7x| < 1.
1 - (7x) + (7x)^2 - (7x)^3 + (7x)^4 +....
Find the sum of the series if |7y| < 1.
1 - (7y)^2 + (7y)^4 - (7y)^6 + .....

2007-11-13 06:30:38 · 2 answers · asked by simonkf2002 1 in Mathematics

who really cares about this anyway ?

I've never heard of anyone complain that the air pressure is pressing down on them too much...

2007-11-13 06:30:05 · 18 answers · asked by Anonymous in Weather

This child has a series of videos on YouTube. He says he is an indigo child and offers lessons on the History of Man, Aliens, Vaccines, Jimi Hendrix and DNA.

I am wondering if anyone knows anything about him. I think he is from New Zealand and I am not sure if he is a boy or a girl.



http://www.youtube.com/user/DesteniProductions

2007-11-13 06:21:46 · 4 answers · asked by LongAgo 5 in Paranormal Phenomena

I am doing physics, chemistry and biology and got A's in them at AS and am applying to Do mechanical engineering, how difficult could it be?

2007-11-13 06:20:03 · 10 answers · asked by Anonymous in Engineering

is there a animal that looks like a stone that has a human hair in it small ones

2007-11-13 06:13:13 · 2 answers · asked by Anonymous in Zoology

2007-11-13 06:11:39 · 2 answers · asked by Anonymous in Chemistry

2007-11-13 06:09:45 · 0 answers · asked by damigurl05 1 in Biology

2007-11-13 06:08:35 · 11 answers · asked by Kimberly 1 in Astronomy & Space

Is
(x power y) power z = x power yz
only true if
x >= 0
?

Please explain why.

2007-11-13 06:07:42 · 4 answers · asked by E. Divin 2 in Mathematics

my homework is to find out what a river delta is. and i cant find a simple understanderble explanation on search. please can the answer be simple enough for a young teenager. and any websites to back your answer would be apreciated! thanks!

2007-11-13 05:58:00 · 16 answers · asked by Anonymous in Geography

What must the amount of his sales be for him to earn at least $1500 each month? (Let s = the amount of Jordan's sales)

2007-11-13 05:57:07 · 5 answers · asked by Alley 1 in Mathematics

2007-11-13 05:55:49 · 2 answers · asked by cool asjad 1 in Earth Sciences & Geology

It would be wonderful if you can solve it here so that I can learn. The molar mass is 270.0g/mol.

2007-11-13 05:55:43 · 2 answers · asked by Sijal A 1 in Chemistry

I've seen a lot of Orange Lady Bugs lately especially in our Playground... kids seem to run away from them, does anyone Know what exactly is the difference between the Orange Lady Bug and the Traditinally seen Red Lady Bug.... (obviously aside from the colors)?

2007-11-13 05:55:41 · 4 answers · asked by Cinerd 1 in Botany

Just checking.

2007-11-13 05:55:03 · 3 answers · asked by Z 1 in Botany

Okay, it says: Find the unite vectors u = (cos X)i + (sin X)j in the same direction as:

1. -i + 3j

2. 6i - 8j

I have no idea what that means, as I have never dealt with a problem like that before. I have no idea even where to begin because I do not know what it is asking me to do!! Can someone please help me figure this out?! Thank you so much and I'll pick a best answer TODAY!!!!!!!!!!!!!!!!!!!!!!

2007-11-13 05:54:35 · 5 answers · asked by James J 2 in Mathematics

given the 2 x 2 matrix - A

( 0.9 0.05 )
( 0.1 0.95 )

please help me find A ^ (n ) where n is a positive integer

the intial condition is:
( v ) = 300
( r ) 100

please help me, I'm really lost

2007-11-13 05:53:28 · 1 answers · asked by phil h 2 in Mathematics

It has been predicted that global temperatures to rise some 20 degrees Fahrenheit in the next 100 years, but what is the lowest the temperature could rise that will cause the ice caps to melt?

2007-11-13 05:53:14 · 4 answers · asked by Candace 2 in Weather

how can natural systems affect the development of three kinds of human systems: Transportation, communities, and industry. please give an example of each kind of human system.
Thank You!

2007-11-13 05:52:01 · 3 answers · asked by princess 2 in Geography

I have a circle with points D &E making a 50 degree angle meeting at point D which is the midpoint of the circle. So line CD & CE are equal to the radius of the circle. Now I also have point A which is directly located between points D &E at the opposite side of the circle. I need to find what is the angle DAE???

2007-11-13 05:51:29 · 3 answers · asked by Anonymous in Mathematics

2007-11-13 05:49:12 · 2 answers · asked by efwisocap 3 in Geography

Please be very descriptive. This is for a high school science project literature review. If you would like your name to be mentioned in the review with your response, please provide me with your name or nickname. If you are a scientist please let me know what area of science you are in. Thanks.

2007-11-13 05:48:31 · 4 answers · asked by hilduff626 2 in Botany

let X have pdf f(x)=4x^3, 0
the answer in the back is g(y)= 2y, 0
im not sure how they got this answer, thanks

2007-11-13 05:46:09 · 3 answers · asked by Anonymous in Mathematics

2007-11-13 05:45:17 · 1 answers · asked by Juniper McClintock 4 in Physics

i know that belt has a name, but i have to research the wildlife there and i've been given 'tropical', 'savannah' and 'continental', none of which appear to be helping. even better if you could name five animals there.. thanks soo much!

2007-11-13 05:43:54 · 3 answers · asked by Lily 2 in Geography