Science & Mathematics - 10 October 2006

Please give me the best math problem you know. Please help.


any help will be appreciated!!

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^_^thanks!

2006-10-10 23:57:05 · 9 answers · asked by kevin! 5 in Mathematics

The base of a certain solid is a circular disk with diameter AB of lenght 2a.Find the volume of the solid if each cross section perpendicular to AB is an equilateral triagle? i reall y dont get this


an observatory is shaped like a solid whose base is a circular disk with diameter AB of length 2a.Find thr volume of this solid if the cross section perpendicular to AB is a square? i dont know how to solve it

THANKS

2006-10-10 23:54:23 · 5 answers · asked by jhen_hidaka 1 in Mathematics

Addition and subtration of rational expression

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2006-10-10 23:51:01 · 4 answers · asked by Anonymous in Mathematics

All the info I found was that there was a small number of them left in 2004.

2006-10-10 23:47:23 · 4 answers · asked by ♫tweet75♫ 3 in Zoology

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2006-10-10 23:38:06 · 16 answers · asked by Anonymous in Geography

A speaker was so boring that one-half of the audience left after a few minutes. Five minutes later, one-third of the remaining audience left. Ten minutes later, one-fourth of those remaining left, leaving only nine people in the audience. How many people were in the audience at the beginning of the lecture?

2006-10-10 23:27:52 · 10 answers · asked by Anonymous in Mathematics

2006-10-10 23:27:39 · 6 answers · asked by Irene A 2 in Biology

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2006-10-10 23:26:44 · 4 answers · asked by Ugi 2 in Astronomy & Space

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If a circular pizza is cut using only straight cuts and yields seven pieces, what is the minimum number of cuts that are made?

2006-10-10 23:21:42 · 20 answers · asked by Anonymous in Mathematics

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2006-10-10 23:21:24 · 6 answers · asked by Anonymous in Astronomy & Space

2006-10-10 23:12:21 · 20 answers · asked by gmarti93 1 in Astronomy & Space

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2006-10-10 22:59:17 · 25 answers · asked by ganesh j 1 in Medicine

Can this be a method to determine its correct concentration?
Titrate a known quantity of ammonia with an acid (like HCl) with an indicator like phenolphthalin.

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2006-10-10 22:40:48 · 13 answers · asked by vixen 1 in Biology

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2006-10-10 22:24:44 · 32 answers · asked by lozzi_pop22 4 in Weather

power cable is to be run from a power plant on the river bank 900m wide to a factory that is located 3000m downstream to the opposite bank.if the cost of laying cable under water is Rs 5 per metre and that is laying overhead is Rs 4 per metre .find the point downstream where the cable is to cut accros the river.

2006-10-10 22:23:22 · 8 answers · asked by Anonymous in Engineering

2006-10-10 22:19:52 · 7 answers · asked by sreelaxmi c 1 in Mathematics

1 is equal to 2, dats rite, watch..
1-1=0 n 2-2=0 so (1-1)=(2-2). ok?
so take common parenthesis.....
1(1-1)=2(1-1)...rite?
eliminate (1-1) on both sides...n whatcha got
1=2.
hee hee this is quite funny rite? any objections?

2006-10-10 22:13:28 · 16 answers · asked by Neo 2 in Mathematics