Science & Mathematics - 12 January 2007

Constructing letter "Z" using bezier curves ;;;?
i need a mathematica code to construct the letter "Z"(times new roman) using bezier curves..

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2007-01-12 23:12:52 · 1 answers · asked by Anonymous in Mathematics

I read that a long time ago, they used to take canaries into coal mines to test for gas. If the bird died they knew to evacuate.

2007-01-12 23:09:15 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-12 23:08:32 · 2 answers · asked by xyz123 1 in Earth Sciences & Geology

About einstein theory of relativity, the E=MC2

2007-01-12 23:02:23 · 7 answers · asked by flongkoy 2 in Physics

ratio of the length of the height and the side=1.667

2007-01-12 23:00:22 · 5 answers · asked by danilo g 2 in Engineering

From the given formulae of sample variances which is biased estimator of a^2 and why?

S^2 = Sum ( x - x )^2 , s^2 = Sum ( x - x )^2
n-------------, ------------------- n - 1

I can't post the exact equation in a statistical manner but Please I need the whole equation to be solved step by step. Its urgent. Thanx.

2007-01-12 22:53:51 · 4 answers · asked by ak l 1 in Mathematics

2007-01-12 22:48:47 · 6 answers · asked by baa baa 1 in Botany

I recently read that someone gained 3017% over 47 years (see: http://www.fool.com/investing/dividends-income/2007/01/09/how-to-earn-a-3017-return.aspx?source=iflfollnk0000003 )

I then went to figure out what the annualized rate, but can't remember the exact formula. I believe the problem would be written as x^47 = 301.7 to get the annual percent return. I was thinking the solution was log(47) / log(302) but when I did the math I got an obviously wrong result. I remember figuring out a really simple way when you have a calculator with the log function. Maybe it was the LN function because it sure isn't working how I am trying it.

2007-01-12 22:48:30 · 1 answers · asked by Citizen80285bnz 2 in Mathematics

2007-01-12 22:44:19 · 6 answers · asked by gaurav 1 in Mathematics

Identical twin sisters, sharing the same DNA (confirmed by St Thomas Twin Research Unit), but I get the bunions! We both wore the same silly shoes when teenagers, so how come one of us ends up in hospital to get two ugly joints removed? Also, one has an underactive thyroid, raynods disease, gall stones and suffered a heart attack (the healthy twin who doesn't smoke, drink or consume fat), and the other doesn't. On balance, I think I prefer to have gotten away with just bunions!

How come we can be so different physically even though we came from one fertilised egg? It's not even as if we have remarkably different life styles or live in opposite hemispheres. Obviously, identical twins are not clones - but how come there are now such glaring physical differences?

2007-01-12 22:36:48 · 7 answers · asked by Anonymous in Biology

2007-01-12 22:36:16 · 1 answers · asked by shakti s 1 in Chemistry

I went to give blood the other day and they said my iron levels were too low.

They wrote back saying I need to see a doctor.

Here are the results:
Haemoglobin 11.7 g/dl
MCV 86.0 fl
MCH 27.8 pg
Platelets 306
White Blood cells 8.8

I am not anaemic am I?

2007-01-12 22:27:00 · 14 answers · asked by Rebz 5 in Medicine

I am crazy about buildings.So I want some information about civil engineering.And about for that in foreign countries.

2007-01-12 22:26:23 · 5 answers · asked by kishor s 1 in Engineering

A) As u all know fibonnaci sq is 1,1,2,3,5,8,13,21....................

I have been wondering what is the end of this sequence, i checked the internet and it gave me a number which is irrational number. (root5-1)/2 or (root5+1)/2, forgot
Anyone here explain this?


B)

If 1/3 = 0.33333 rational

Multyiply 3 on both sides

3/3 = 0.9999 rational

1 = 0.999999 rational???

Any one here explain this?

2007-01-12 22:26:12 · 8 answers · asked by Kirk 2 in Mathematics

my sis needs it for homework

2007-01-12 22:20:22 · 13 answers · asked by olamipopoola 2 in Astronomy & Space

I am 2 P.U.C. student from Karnataka.I want to become a aeronautical engineer.So which exam should be written to get for aeronautical engineering?

2007-01-12 22:20:00 · 5 answers · asked by kishor s 1 in Engineering

2007-01-12 22:16:46 · 14 answers · asked by Anonymous in Mathematics

when we get a coloured cell under the microscope,than add a salt solution,5%, and then distilled water. I know that the color will first disappear and the come back but I just want a more detailed discription of why this happens...

2007-01-12 22:11:56 · 2 answers · asked by aly 1 in Biology

when we get a colored cell under the microscope,than add a salt solution,5%, and then distilled water. I know that the color will first disappear and the come back but I just want a more detailed discription of why this happens...

2007-01-12 22:10:00 · 1 answers · asked by aly 1 in Biology

2007-01-12 22:04:48 · 14 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-12 22:03:05 · 25 answers · asked by cliffrocker 2 in Astronomy & Space

2007-01-12 22:01:40 · 13 answers · asked by Palu 1 in Astronomy & Space

2007-01-12 22:00:49 · 9 answers · asked by hmlband1 2 in Astronomy & Space

Can nuclear reactions be carried out with elements other than uranium or plutonium? Such as magnesium, iron, or pollonium?

2007-01-12 21:48:45 · 4 answers · asked by formystudies3 1 in Physics

2007-01-12 21:46:50 · 2 answers · asked by Anonymous in Chemistry

what is the value of x in the equation 3 to the exponent (4x-2)=27 to the exponent (x+2)

2007-01-12 21:43:37 · 7 answers · asked by a helpless gal 1 in Mathematics

jus askin

2007-01-12 21:41:34 · 22 answers · asked by Lee-Lee 2 in Medicine

Find the length of one side of a square with 8 m diagonal.

2007-01-12 21:41:18 · 9 answers · asked by a helpless gal 1 in Mathematics

2007-01-12 21:33:27 · 15 answers · asked by Anonymous in Physics

while setting a lab for DNA fingerprinting choice of instruement is difficult to be made. I need complete summary from a to z that should we have in our lab where DNA fingerprinting will be done by STR identification methos.

2007-01-12 21:32:11 · 1 answers · asked by Indian ranger 1 in Biology