Science & Mathematics - 13 February 2007

click the lick below and scroll the histogram where it says "best estimate for the median".
http://cs.uni.edu/~campbell/stat/histrev.html
can somebody please explain how they got the answer?

2007-02-13 16:04:54 · 4 answers · asked by Ha!! 2 in Mathematics

2007-02-13 16:03:02 · 6 answers · asked by *05* 1 in Mathematics

Crack rocks. The things you smoke. What kind of rock are they?

2007-02-13 16:02:39 · 4 answers · asked by ohmygodapirate 2 in Earth Sciences & Geology

It is 26 degrees, we have freezing rain and wintry mix! I am a teacher...hoping for a snow day!

2007-02-13 16:01:31 · 9 answers · asked by snarf 5 in Weather

We are having a blizzard right now. Won't be done till morning. I'm really snowed in! Is anyone else out there in the storm too? Indiana here, how about you? Are you keeping warm? Got your shovel ready? Ready for another day stuck in with the kids? Have enough food stocked up? Stay warm and safe!

2007-02-13 16:01:27 · 5 answers · asked by Shari 5 in Weather

although he did not think nature was perfect or had a grand purpose, he still rejected the idea that one species could give rise to another.

2007-02-13 15:59:57 · 4 answers · asked by *05* 1 in Mathematics

Math homework help, please?????
the denominator of a fraction is a two-digit number whose digits add up to ten. If the digits are reversed, the new number is the numerator. if 41 is subtracted from the numerator, the value of the resulting fraction is 1/2. find the original fraction

2007-02-13 15:59:07 · 6 answers · asked by Anonymous in Mathematics

2007-02-13 15:58:21 · 2 answers · asked by Khanh N 1 in Astronomy & Space

solve

2007-02-13 15:58:04 · 13 answers · asked by Alex A 1 in Mathematics

i have to list and explain the parts of the biosphere:
i have been researching it for the past 2 hours and i am so confused.please help .10 points best answer,thankyou

2007-02-13 15:54:21 · 3 answers · asked by ♥I_rock_you♥ 5 in Earth Sciences & Geology

2007-02-13 15:53:40 · 4 answers · asked by Selena Q 1 in Mathematics

2007-02-13 15:53:04 · 12 answers · asked by Hk 4 in Mathematics

2007-02-13 15:49:52 · 7 answers · asked by Lizzie 5 in Mathematics

what is the area of land and sea called that is found between the tropic of cancer and the tropic of capricorn

2007-02-13 15:49:33 · 4 answers · asked by Helper X 2 in Geography

We are studying equal potential lines in my high school physics class, and I have this question.

If lightning strikes a tree 20 meters away, would it be better to stand facing the tree, your back to the tree, or your side to the tree? Assume that your feet are a comfortable shoulder width apart.

I really don't get equal potential lines, is there any generalization you can say about them? Any help or websites about equal potential lines would be much appreciated.

2007-02-13 15:46:49 · 4 answers · asked by Ace 5 in Physics

2007-02-13 15:46:12 · 2 answers · asked by brooklyntrail 1 in Zoology

1) how many membranes does the nuclear membrane have?

2) what is the major macromolecule stored in the nucleus?

3) what is apoptosis?

4) how do prokaryotes keep their dna?

5) which are the two kingdoms which contain prokaryotes?


plzzz help

2007-02-13 15:45:00 · 2 answers · asked by 123 1 in Biology

find the area of a rhombus with side 17 and longer diagonal 30.

how would i do that??

2007-02-13 15:43:49 · 5 answers · asked by j;lkj;lkj;lkj;lkj 2 in Mathematics

O.k. If you have a 6 hr. course and you receive an A.
Then a 3 hr. course and receive a B.
Then a 3 hr course and receive a C.
What is your grade point average?

2007-02-13 15:43:25 · 3 answers · asked by Sean C 1 in Mathematics

2007-02-13 15:43:23 · 6 answers · asked by nice_girl 1 in Biology

Overall reaction: Tl+ + 2Ce4+ --> Tl3+ + 2Ce3+

For the catalysis of Thallium oxidized from Ti+ to Ti3+ by the mechanism:

Ce4+ + Mn2+ --> Ce3+ + Mn3+
Ce4+ + Mn3+ --> Ce3+ + Mn4+
Tl+ + Mn4+ --> Tl3+ + Mn2+
Why is the reaction slow without a catalyst? At first I thought it was because it is a termolecular reaction. But then I thought, why couldn't the reaction do this without a catalyst:

Tl+ + Ce4+ --> Tl2+ + Ce3+
Tl2+ + Ce4+ --> Tl3+ + Ce3+ ?

Why exactly is this reaction slow without the catalyst? What makes the top set happen any faster than the lower set?

2007-02-13 15:42:30 · 1 answers · asked by Professor 1 in Chemistry

49). Solve the system by graphing.
3x + y = 6
3x – y = 0
-------------------------------------
50). x – 2y < 4
x > 1
_______________________
28). Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. How many of each bill does Anna have?
thanks

2007-02-13 15:41:23 · 4 answers · asked by dee free 2 in Mathematics

2007-02-13 15:41:18 · 7 answers · asked by slim32 1 in Mathematics

GEOMETRY QUESTION help pleeeaase :)?

angle A and angle B are complementary. Find m
(<=angle)

m m

2007-02-13 15:39:06 · 6 answers · asked by ShakeDatLaffyTaffy 2 in Mathematics

2007-02-13 15:36:34 · 6 answers · asked by alona p 1 in Mathematics

2007-02-13 15:35:29 · 7 answers · asked by BMB 1 in Biology

2007-02-13 15:34:53 · 5 answers · asked by Megan B 1 in Botany

i'v had a surgery about 1 1/2 years ago...it is called M&T. i would like to know whether the tube is going to stay inside my ear for how long?if it is going to drop out, is it going to be bit by bit or the whole thing?does it have any symptoms or discomfort?maybe healthcare professionals can help me answer these questions!

2007-02-13 15:33:18 · 4 answers · asked by HumanBeingOnEarth! 4 in Medicine

2007-02-13 15:32:52 · 2 answers · asked by BMB 1 in Biology

2007-02-13 15:32:08 · 8 answers · asked by ivan4x4 1 in Astronomy & Space