Science & Mathematics - 8 January 2007

Let Y~exp(1) , X~min(Y,1) .
Compute MFG of X.

2007-01-08 18:25:01 · 3 answers · asked by Andrea 1 in Mathematics

(sinx-1/cosx)-(cosx/sinx-1)

please show steps. it should be simplified to 2tanx, but i do not know how to reach that answer. please show steps

2007-01-08 18:19:51 · 3 answers · asked by Anonymous in Mathematics

The problem is

The lenght of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the lenght of the base. If the perimeter is 29 cm, find the lenght of one of the equal legs.


I keep getting 12 is that right .

Please help me I am so lost. Thank you so very much for your help in advance.

2007-01-08 18:19:40 · 6 answers · asked by Anonymous in Mathematics

The Question:
Within a decade of the introductionof a new insecticide, nearly all of the descendants of the target pests were immune to the usual-sized dose. the most likely explanation for this immunity to the insecticide is that_________.

a.) eating the insecticide caused the bugs to become resistant to it .
b.) eating the insecticide caused the bugs to become less resistant to it.
c.) it destroyed organisms that cause disease in the insects, thus allowing them to live longer.
d.) the pests developed physiological adaptions to the insecticide.

2007-01-08 18:19:08 · 14 answers · asked by kmagee 2 in Biology

(sinx-1/cosx)-(cosx/sinx-1)

please show steps. it should be simplified to 2tanx, but i do not know how to reach that answer. please show steps

2007-01-08 18:16:56 · 1 answers · asked by Anonymous in Mathematics

I think he multiplied the equation and later divided out his multiplier. It was long ago.

2007-01-08 18:16:52 · 2 answers · asked by John W 2 in Mathematics

I need a lot of explaining done to help me understand the stages of meiosis & identifying what stage is what by looking at pictures.

Here is a copy of my homework for tonight:
http://www.biologycorner.com/worksheets/meiosis2.html

If anyone can help me out, I would appreciate it a lot. I've been stuck on this homework for hours. And I've researched already but I just don't get it.

2007-01-08 18:16:48 · 2 answers · asked by M 2 in Biology

I saw this program awhile back about chimps and man. The focus of the story was a chimp that was thought to be half man half ape due to his ability to walk upright and his abnormal facial features. It turned out he was a normal chimp just some random mutation caused him to be that way. But it made me wonder, is it possible for chimps and humans to interbreed?

2007-01-08 18:16:47 · 8 answers · asked by Anonymous in Biology

we can feel fire... but we dont know what are the matter it is made up of.. at the same time, we dont refer fire as energy.. why?? what exactly is fire?? what is it made up of??

2007-01-08 18:15:54 · 18 answers · asked by honey 1 in Physics

how do I evaluate 2m-5n/n+3p if m= -2, n=4, and p= -1

I am not sure how to set this up on the computer so the 2m-5n is on top of a divider line and n+3p in on the bottom.

2007-01-08 18:14:03 · 5 answers · asked by Anonymous in Mathematics

Hurricane Gilbert, Hurricane Katrina, Hurricane Andrew, why? Does anybody know how meteorologists are inspired to name hurricanes? And why give them human names?

2007-01-08 18:12:58 · 8 answers · asked by Anonymous in Weather

In Michael Crichton's Timeline, a character made a paste that was combusted when it came into contact with moisture. What was it made of?

2007-01-08 18:11:34 · 3 answers · asked by Aaron 1 in Chemistry

A. Positive and Positive
b. positive and negative
c. negative and negative
d. either (a) or (c)

2007-01-08 18:11:03 · 25 answers · asked by Sam the pikachu lover 1 in Physics

2007-01-08 18:10:59 · 8 answers · asked by honey 1 in Mathematics

Can someone please help me with this. I keep getting x=1.85 and I know that is wrong so I am missing astep somewhere

Solve the system by addition
-4x+7y= -10
x-5y=9

Thank you all in advance for your time and help!!!

2007-01-08 18:09:14 · 6 answers · asked by Anonymous in Mathematics

I want proof that any one living thing has changed it's DNA completely from one thing to another. like cows to whales or what ever. Apes to Man, etc... any living thing can adapt to its environment but the DNA structure never changes naturally once it's concieved. even though science can create Ligers from lions and tigers they can't breed and will not survive as a species on their own.

2007-01-08 18:08:45 · 15 answers · asked by Tank Stillton 2 in Biology

Be honest, I mean is it even possible to believe we are alone?

2007-01-08 18:05:51 · 22 answers · asked by Anonymous in Paranormal Phenomena

2007-01-08 18:05:29 · 8 answers · asked by curious_cat 2 in Medicine

2007-01-08 18:03:05 · 4 answers · asked by Yen 1 in Mathematics

ok............check out these questions ya'll:

1. Before the seventeenth century, what ideas did people have concerning motion, velocity, and acceleration?

2. How did philosophers in ancient times explain motion in the solar system?

2007-01-08 18:02:21 · 3 answers · asked by Yisi 3 in Physics

that exists all around us or the planet? Is there a change in the electromagnetic field caused by the neural energies?? just wondering.

2007-01-08 18:02:20 · 4 answers · asked by Its not me Its u 7 in Physics

Did they ever figure out what the rock was that came crashing through the roof of the home in New Jersey last week? I haven't heard any more about it. Let me know please!

2007-01-08 17:59:41 · 2 answers · asked by Honesty given here! 4 in Earth Sciences & Geology

2007-01-08 17:59:19 · 3 answers · asked by haresh s 2 in Zoology

2007-01-08 17:55:10 · 22 answers · asked by muk 1 in Astronomy & Space

Over the years all of us have seen media or show broadcasts about kids who said they are re-incarnated and geniuses
and such on sixty minutes and other programs...Where the
hell are they now? Is little Tommy foof foo ,Who said he lived in 1800 or little Mary Rattington with the iq of more then most
intelligent adults curing cancer?Where are they all now?

2007-01-08 17:53:24 · 12 answers · asked by All Peaches an cream 2 in Paranormal Phenomena

I have batteries in my kitchen drawer that were completely discharged. They were up against a gallon sized baggie of magnets. Would magnets discharge batteries? There's ALOT of magnets in there, and AA's and C's were discharged. (P.S. They weren't old)

2007-01-08 17:50:53 · 4 answers · asked by Honesty given here! 4 in Other - Science

2007-01-08 17:49:20 · 6 answers · asked by David S 1 in Mathematics

2007-01-08 17:46:20 · 9 answers · asked by Questions&Answers 4 in Astronomy & Space

What is this attraction called?
a) atom - atom
b) molecule - molecule
c) molecule - ion
d) ion - ion
e) atom - ion

Thank you for your help!

2007-01-08 17:44:36 · 5 answers · asked by Palladium 1 in Chemistry

How to use the Periodic Table to determine the number of electrons and be able to teach a group of kids to understand it?

2007-01-08 17:44:01 · 3 answers · asked by mcdt06 1 in Chemistry