Science & Mathematics - 4 February 2007

twelve of the 30 students earned an A on the test. What percent of the students earned an A?

2007-02-04 23:58:56 · 4 answers · asked by chelsea 1 in Mathematics

2007-02-04 23:58:05 · 27 answers · asked by me! 4 in Mathematics

Hi, everyone! I'm near Indianapolis, Indiana, USA, and currently it's -6ºF, -21ºC! BRRRRRR!!!!

P.S. Go Colts!

2007-02-04 23:54:50 · 25 answers · asked by lachicadecafe 4 in Weather

2007-02-04 23:54:41 · 2 answers · asked by Rajeeva R 1 in Engineering

in three s.f

2007-02-04 23:54:34 · 1 answers · asked by o cool 1 in Mathematics

How about our universe is in another big universe? Like an ever expanding series of universes with no end to them?

What do the lastest scientific research show?

2007-02-04 23:52:57 · 12 answers · asked by sh 1 in Astronomy & Space

2007-02-04 23:49:20 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2007-02-04 23:48:03 · 3 answers · asked by sachinram 2 in Zoology

I was thinking about fitting a catalytic converter to my butt. This would reduce gas emissions when I farted . Are there any other ways I can save the world before it is too late.

2007-02-04 23:47:25 · 7 answers · asked by Anonymous in Earth Sciences & Geology

2007-02-04 23:44:10 · 7 answers · asked by Benny W 1 in Astronomy & Space

2007-02-04 23:43:22 · 11 answers · asked by jumanjisapikey 3 in Physics

How is dust formed?
Why is there always dust around us?
Some dust can only be seen by visible sunlight, and not by our own eyes. Why?

2007-02-04 23:43:05 · 7 answers · asked by Sachu 2 in Earth Sciences & Geology

What can be the possible economic significance of a
1. clap switch- a switch that responds to sound
2. lie detector

Thanks!

2007-02-04 23:42:06 · 2 answers · asked by summer 2 in Engineering

2007-02-04 23:41:55 · 5 answers · asked by Anonymous in Mathematics

I know that x=-2.4.
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Ok. I think I understand why I am unable to get this.
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Many nice people have TRIED HARD to explain this, and I thank you all!
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BUT!
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I need sombody to explain this WITHOUT USING NUMBERS! (I think...)
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In other words instead of saying:
"multiply both sides by 3"...
you could say:
"look for division, and multiply the number to the right (3), by all numbers on the oppisite side. (8 and 4).
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Because if you say multiply both sides by 3, my brain doesnt understand why, and furthermore cannot face NEW equations with a "both sides by 3" mentality.
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If your willing to help me (even more). Then when your done, ask yourself:
"Can a eight year old understand this?"
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Because I am NOT GETTING this at ALL!

2007-02-04 23:38:58 · 9 answers · asked by bubbie_king 2 in Mathematics

2007-02-04 23:38:26 · 1 answers · asked by Gita 1 in Weather

2007-02-04 23:37:41 · 7 answers · asked by bob the monkey 1 in Chemistry

I need help for my geography project!
I need to know how weathering affect buildings and what phisycal evidences are there to show that weathering is taking place weathering.
Thx.

2007-02-04 23:34:30 · 3 answers · asked by 75345 2 in Earth Sciences & Geology

where do they stay in the summer and where do they stay in the winter ?

2007-02-04 23:33:03 · 1 answers · asked by QT's=) 1 in Zoology

2007-02-04 23:32:15 · 11 answers · asked by Ankush S 1 in Astronomy & Space

2007-02-04 23:32:12 · 18 answers · asked by cmcconnachie2000 3 in Astronomy & Space

2007-02-04 23:29:19 · 1 answers · asked by ammu 1 in Medicine

2007-02-04 23:27:33 · 3 answers · asked by lala_jonesy 2 in Geography

2007-02-04 23:27:10 · 3 answers · asked by Ronaldo D 2 in Physics

All throughout the State of Michigan Tempatures are droping very fast. They will continue like this all druing the day. Almost every schoool in Michigan is closed. Accecpt Midland Public Scools. I think this is absurd. Frost Bite can set in after 15 minutes outside at these tempatures.

2007-02-04 23:26:42 · 5 answers · asked by FDR 2 in Weather

I'd read of a study that claims there is a genetic basis - not a single gene, but a trend of genetic information - that gives a statistically significant increase in the likelihood of an individual being homosexual.

If this is the case, and as homosexuality has to be seen as an impediment to genetic inheritance, how has the genetic trend persisted through the evolutionary chain?

2007-02-04 23:22:42 · 13 answers · asked by Anonymous in Medicine

Quesion 4) What vector subtracted from 100km N gives 200km N60E?

Question 8)
a) i solved the answer is 25N

b) what is the direction of the nest force acting on the mass?

2007-02-04 23:16:54 · 3 answers · asked by NFLS121a 1 in Mathematics

Can u lead me to a site with a brief explanation of crustal plates?
or just copy paste it here thanks!

2007-02-04 23:16:37 · 1 answers · asked by Anonymous in Earth Sciences & Geology

You know that feeling you get when you catch someones eye? Can that happen through a mirror?

2007-02-04 23:16:21 · 3 answers · asked by LIL Slash 3 in Other - Science

Ok, we all know that Elapids are the most toxic, followed by Viperidae.

What most people do not know is that back fanged colubrids can be deadly. This is a primitive venom injection system that usually requires knawing on a prey item to inject.

I know that Boomslangs, African Twig Snakes, and Mangrove snakes are dangerous. The Boomslang and African Twig Snake have been known to cause human fatality if the bite is not treated. Most people do not consider a bite from a back-fanged colubrid dangerous and those who do not pay for it.

I was bitten by a Mangrove and can testify that I did not feel very well for awhile.

What are the other back-fanged colubrids that pack a potent venom whallop? I am talking about colubrids that can harm or even kill an adult human in good health?

2007-02-04 23:15:00 · 5 answers · asked by j 5 in Zoology