Science & Mathematics - 27 September 2007

i am terible at geometry especially proofs does anyone kno a website where i could get extra help? Plz help me

2007-09-27 14:16:04 · 4 answers · asked by beauty beyond description 2 in Mathematics

I did .

2007-09-27 14:15:30 · 14 answers · asked by Anonymous in Paranormal Phenomena

2007-09-27 14:14:35 · 4 answers · asked by tahiri 1 in Weather

its a algrebra math question

2007-09-27 14:13:46 · 5 answers · asked by Anonymous in Mathematics

a. provide additional area where many metabolic processes occur.
b. form membranous compartments called organelles.
c. greatly increase a cell's total membrane area.
d. contain proteins essential for metabolic processes.
e. All of the choices are correct.

2007-09-27 14:11:28 · 3 answers · asked by ursportsguy 1 in Biology

if you guys can help me with a step by step i may beable to finish the rest, please help and thanks! Please tell me about your process because i dont get L'Hopital's rule...

l i m (sin^2 x) / (x)
x --> 0

2007-09-27 14:10:44 · 2 answers · asked by iSmile 2 in Mathematics

if you could go back in time with what you know know, what would you tell someone to prevent/prepare them from pollution,food,medicine,space,technology...

i would love to know your opinion.
thanks

2007-09-27 14:10:20 · 2 answers · asked by Anonymous in Chemistry

He has to take a pix of chemistry around the community and explain the chemistry taking place. He says that almost any pix can be explained as an example of chemistry taking place. Can someone give so examples of hints of where to look, or what or something? It's been a very long time since I took physics in school and cannot remeber anything... Can anyone help me pleaseeeeeeeeeeee...

Thank so very much...

2007-09-27 14:09:17 · 1 answers · asked by Borigata 1 in Chemistry

Can someone explain the nitrogen cycle to me?

2007-09-27 14:09:05 · 4 answers · asked by BlueEyedAngel 2 in Botany

Related to Geometry

2007-09-27 14:07:29 · 3 answers · asked by Prasoon 1 in Mathematics

Which of the following is not a polysaccharide?
A)Cellulose
B)Glysogen
C)Chitin
D)Starch

please I need truthfull answers. thanks in advance

2007-09-27 14:05:19 · 2 answers · asked by Oh la la! 4 in Biology

if 1/2AB=1/2EF, then AB=EF. what property is that?

2007-09-27 14:04:03 · 2 answers · asked by Sarah S 3 in Mathematics

Also, what about Savannah Ga.?

I would think that many really haunted places would be more in the south..as well as in Europe...but, I realize that they are nearly everywhere..even in Hawaii!!

If you have or think of other cool places...besides sending me ghost sites..I would appreciate this alot...you can also email stories if you want....

I tell ghost stories..and I like to make up my own.... as well.I get inspired by true stories..and also ones that people make up!!

Thanks a lot!!

2007-09-27 14:02:17 · 11 answers · asked by ladyk 2 in Paranormal Phenomena

2007-09-27 14:01:17 · 6 answers · asked by LuvNatalie 3 in Mathematics

Factor Completely:

(a+b)^6 - (a-b)^6

Help me!!!
P.s. ^6 means raised to the 6th power

2007-09-27 14:00:26 · 4 answers · asked by Susan 4 in Mathematics

as if they were the only mother effing class we have!! they load us up on homework they expect due the next damn day when we have five other teachers that do the same thing and they expect us to get it done on time?? what is wrong with them!!
please if your a teacher tell me because i really dont know why you do that.

2007-09-27 14:00:05 · 3 answers · asked by Anonymous in Physics

2007-09-27 13:53:03 · 12 answers · asked by Jasmeen I 2 in Mathematics

Determine y' when
y= x ^ (1/x)
y' = (y/ x^2) (lnx-1)
???
plz show me how

2007-09-27 13:47:55 · 2 answers · asked by Anonymous in Mathematics

NaCl dissolves in water, but not all other liquids. I'm trying to explain this to a grade 4 student. Can anyone help?

Thank you.

2007-09-27 13:45:05 · 1 answers · asked by Faeliz 1 in Chemistry

When using a stair climber; Eric burns 9.6 calories per minute. When he walks on the treadmill, he burns 5.3 calories per minute. If Eric has 50 minutes to exercise and wants to burn 350 calories, how many minutes should he spend on each machine?

2007-09-27 13:42:28 · 2 answers · asked by dannielle 1 in Mathematics

Anyone else see sparks of light?
Ever since I was a kid I have seen sparks of light. I heard they could be spirits or angel trails which do you think they are? Btw there is nothing wrong w/ my eyes so its not a eye disorder.

2007-09-27 13:40:04 · 21 answers · asked by Death Girl Am 6 in Paranormal Phenomena

for astronomy hmwk. Can't find it in the book. Help please!

2007-09-27 13:35:08 · 5 answers · asked by Anonymous in Astronomy & Space

Solve each system of equations using matrices. If the system has no solution, say it is inconsistent.

{2x + 3y = 7
{3x - y = 5

Can you explain how you solve this so I understand? it is in the system of linear Equations: Matrix Method! I need it in row echelon form then give solution for y and x?

The solution of the system is x = 2 and y = 1

I just want to know how you solve this so you get the solution?

2007-09-27 13:33:06 · 3 answers · asked by w s 3 in Mathematics

My best friend claims that the area of his hand does not exist because it cannot be found by any formula.

2007-09-27 13:31:31 · 3 answers · asked by Jeff 1 in Mathematics

2007-09-27 13:28:56 · 2 answers · asked by Anonymous in Chemistry

Albert spent all his money in 5 stores. In each store, he spent $1 more than half of what he had when he entered that store. How much money did Albert have when he entered the first store?

I have weekly Problem of the Weeks in algebra 1 class. My teacher lets us use ANY source at all. So technically, I am not cheating or anything by putting the question an yahoo! answers. I have tried to get the answer but I am really puzzled.

2007-09-27 13:27:21 · 3 answers · asked by Anonymous in Mathematics

A 10-kg iron ball rolling at 2 m/s on a horizontal surface strikes a 1.0-kg wooden ball of the same size that is at rest. What is the speed of each ball after the collision? What proportion of the iron ball’s original KE was transferred to the wooden ball?

2007-09-27 13:26:55 · 1 answers · asked by miaka 1 in Physics

an equation that has no solution is called?

2007-09-27 13:19:59 · 6 answers · asked by SH@WTY 1 in Mathematics

2007-09-27 13:19:46 · 8 answers · asked by Anonymous in Weather

when we use appliances whose power is higher that 1700W , do we need a special power supply connexion? It seems that there are not many this kind of special power points in a normal building or house ? Is that true ?

2007-09-27 13:19:17 · 3 answers · asked by yinyanlee2002 1 in Engineering