Science & Mathematics - 26 October 2007

Two events, X and Y, are independent, such that P(Y)=0.2 and P(X) =0.4

2007-10-26 17:35:35 · 4 answers · asked by Anonymous in Mathematics

A math club of the local university consists of 28 members: 4 freshman,11 sophomores,7juniors, and 6 seniors. Three members are needed to be chosen to help out at the annual math convention. It was decided to draw names randomly.

2007-10-26 17:30:14 · 3 answers · asked by Anonymous in Mathematics

2007-10-26 17:29:17 · 5 answers · asked by Kendra B 1 in Medicine

Okay, I think I am good with how to solve once I figure out where to move my like terms. For example

-4x+8<1/2x +3 (sorry I don't know how to make the fraction look right here).

So I move add 4x to both sides. By moving my "x" like terms to the right.

Now if I have 2x-7>-2/3x-2 , apparently I move my "x" like terms to the left by adding 2/3x to each side.

Here's my question, how do I know where to move my "x" like terms. Is there a standard? Sometimes to the right, sometimes to the left and I don't understand why. I am pretty confused.
Thanks.

2007-10-26 17:04:34 · 7 answers · asked by Heidi Ann 2 in Mathematics

There are so many different causes, and categorized by fail platelet production, or fail platelet survival... What I want to know is how to diagnose the cause.

2007-10-26 17:01:31 · 2 answers · asked by Anonymous in Medicine

I have a condition which caused my body for many years to over produce epinephrine. I'm now being treated, but I don't feel the same as I used to. Is it possible that this could have caused brain damage, even if I wasn't taking a drug, and the drug was being produced by my own body?

2007-10-26 16:59:52 · 2 answers · asked by Anonymous in Medicine

2007-10-26 16:57:06 · 5 answers · asked by Anonymous in Physics

2007-10-26 16:55:14 · 7 answers · asked by ♥FABULOUS♥ 2 in Medicine

my husband couldn't think of it and said "magic?"

2007-10-26 16:43:39 · 6 answers · asked by Anonymous in Physics

I need to know what year, month, day, and time so that I can finaly see it.

2007-10-26 16:40:42 · 3 answers · asked by Denisse la catecumena lol 2 in Astronomy & Space

2007-10-26 16:36:17 · 4 answers · asked by yogiedebear 1 in Mathematics

just wanna know.=)

2007-10-26 16:34:07 · 2 answers · asked by Jo T. 1 in Engineering

IGCSE syllabus

Outline the use of microorganisms and fermenters to manufacture enzymes for use in biological washing powders.

2007-10-26 16:34:07 · 1 answers · asked by blackmail8549 2 in Biology

1. the sum of the measures of the interior angles of a polygon is five times the sum of the measures of its exterior angles, one angle at each vertex. How many sides does the polygon have?



2. the measure of each interior angle of a regular polygon is eleven times that of an exterior angle. How many sides does the polygon have?


i have tried very hard to do this but i can not figure it out. Can u please show me HOW u arived at the answer?

thank you very much in advance!

2007-10-26 16:33:13 · 5 answers · asked by Anonymous in Mathematics

The question goes as fallowing;

Model A 15min(Ea) Assemble 10(ea) Packing
Model B 10min (ea) assemble 12(ea) Packing
-------------------------------------------------------------------------'
Totals 1500 min 1320min

Profit Model A = 12$
Profit Model B = 10$

How many of each model should be produced for max profit?

What is the maximum profit?

(You may solve graphically or by simplex)

Thank you

2007-10-26 16:32:40 · 2 answers · asked by Anonymous in Mathematics

Has anyone seen one? Are they in the US? Where? What do you think they are doing on earth?

Do you know any links with more information? Please post here. Thank you!

2007-10-26 16:27:12 · 4 answers · asked by Anonymous in Other - Alternative

Curiosity

2007-10-26 16:22:38 · 11 answers · asked by shadowkat4646 3 in Earth Sciences & Geology

The answer seems to be n/[2^(n-1)]. Why?

2007-10-26 16:14:43 · 3 answers · asked by Goutam 3 in Mathematics

A rectangular swimming pool is to be built with an area of 1250 square feet. The owner wants 5-foot wide decks along either side and 10-foot wide decks at the two ends. Find the dimensions of the smallest piece of property on which the pool can be built satisfying these conditions.

I have worked the problem out to be Length: 50 and Width: 25. Another answer I got was Length: (125)^1/2 and Width: 1250/(125)^1/2. Apparently these are the wrong answers though. I would really appreciate an explanation of how to do this problem. Thanks.

2007-10-26 16:12:37 · 2 answers · asked by Christian 1 in Mathematics

if the turbine propels the compressor then how does the compressor start

2007-10-26 16:11:00 · 3 answers · asked by jackfrostyh 1 in Engineering

d/dx(e^3/3x^2)

2007-10-26 16:02:54 · 3 answers · asked by lovebird 3 in Mathematics

If yes, then how?

2007-10-26 15:59:24 · 8 answers · asked by Sabrina 2 in Paranormal Phenomena

I was taking pics, and i was curious what type of bug this is .

Here is the link:

http://www.flickr.com/photos/13606906@N04/1767379395/

Thank you !!!

2007-10-26 15:52:15 · 7 answers · asked by A 5 in Zoology

will the earth ever forgo a retrograde motion. was reading up that this is something that happens to other planets, recently to Mars.
also a sign of the end of the world in certain religious beliefs!!!

2007-10-26 15:47:13 · 11 answers · asked by unmaitre 2 in Astronomy & Space

I need the temperature too!

2007-10-26 15:41:28 · 6 answers · asked by lilchiquita92 1 in Astronomy & Space

2007-10-26 15:36:31 · 8 answers · asked by Anonymous in Earth Sciences & Geology

I'm doing a research project and the topic is overdosing with vitamins and minerals. We all know that that's bad, because vitamins act as catalysts and work with enzymes involving your metabolism. But no matter where I look, even in the medical encyclopedia, there is little or no detail as to WHY this is bad or what exactly the overdose does in your system.
any ideas? Sources would be greatly appreciated for further reading. =]

2007-10-26 15:34:11 · 6 answers · asked by linzayy 1 in Medicine

And what nector plants do bees like?

2007-10-26 15:33:05 · 1 answers · asked by Anonymous in Other - Science

comet has recently increased in brightness....approaching the sun...unusual

2007-10-26 15:31:23 · 6 answers · asked by Anonymous in Astronomy & Space

I can not seem to get the hang of these. They seem like they should be so easy.

2007-10-26 15:21:55 · 10 answers · asked by Nicole D 1 in Mathematics