Science & Mathematics - 3 October 2006

2006-10-03 10:03:10 · 8 answers · asked by Anonymous in Mathematics

9+8+7+6+5+4+3+2+1=45=,987654321....(1)
1+2+3+4+5+6+7+8+9=45=123456789.....(2)
deduct (2)from(1) =864197532
add 8+6+4+1+9+7+5+3+2 = 45
therefore 45-45=45!!!!(from Indian mathematician Sakuntala devi)

2006-10-03 10:02:23 · 12 answers · asked by satish ,the great 2 in Mathematics

2006-10-03 10:02:13 · 16 answers · asked by Science nut 1 in Botany

2006-10-03 09:58:15 · 4 answers · asked by Lindy 1 in Biology

What is the limit of

lim(x approaches negative infinity) tan(inverse) x ?

the limit exists, i just dont know what it is

2006-10-03 09:53:54 · 1 answers · asked by sur2124 4 in Mathematics

How do you work the linear method out in this type of problem? I know how you work it out in a system of 2 problems, but I'm not sure about 3 equations.

2006-10-03 09:51:57 · 6 answers · asked by Anonymous in Mathematics

A sample of a compound containing C,O, and silver (Ag) weighed 1.372g. On analysis it was found to contain 0.288g O and 0.974g Ag. The molar mass of the compound is 308.8g/mol.

2006-10-03 09:50:00 · 4 answers · asked by Anonymous in Chemistry

2006-10-03 09:45:08 · 1 answers · asked by lauren d 1 in Mathematics

Well now that pluto is history and has another name that I can't remember; what will they use to memorize the order of the planets???
Will it be, "My very educated mother just ate nine?"
And we will be left hanging for another word but we can't use pizzas because that used to stand for pluto......so i guess that saying is out the door now...

2006-10-03 09:44:56 · 9 answers · asked by Anonymous in Astronomy & Space

I haven't looked at what he's doing yet but he tells me he is working on matrix and inversions......Can anyone give me a quick refresher on this? He's a senior in high school.
Thanks!

2006-10-03 09:44:37 · 7 answers · asked by kelley1031 2 in Mathematics

Thanks in advance if someone can help. At first I thought it was 5 seconds, but I am not sure. I dont think I understand the concept of acceleration completely.

2006-10-03 09:44:03 · 3 answers · asked by Jer G 3 in Physics

2006-10-03 09:43:23 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2006-10-03 09:39:13 · 6 answers · asked by Hermione G. 2 in Biology

I need 5 examples of each symbiotic relationships. They are parasitism, mutualism, commensalism. I really need help!

Thanks sooooo much!

2006-10-03 09:39:08 · 3 answers · asked by Ashley B 1 in Biology

2006-10-03 09:37:58 · 11 answers · asked by Shawn J 2 in Physics

2006-10-03 09:37:47 · 16 answers · asked by Anonymous in Other - Science

My brain is getting all twisted from trying to simplify algebra. I'll use a simple example:

4(3x-2)4*2

I understand that the distributive property has to be used here. We are taught to work from left to right by starting with parenthesis, exponents, multiplication, division, addition, and finally subtraction. Since doing the distributive property requires multiplication, shouldn't I be starting off with 4*3x and 4*-2? I know that's wrong, but I keep thinking it's the right way to go. Does anyone have any good tips that help in simplifying or some good rules that can stop me from making mistakes?

2006-10-03 09:36:37 · 4 answers · asked by Anonymous in Mathematics

Here is the question and the problem: Write the prime factorization of each number. Then write it using exponents
36=____________________________=_____________
Please help first one to help me get a problem right hets best answer the question goes for all of them that are on this answer question 40=________________=__________
90=_________________=________
PLEASE HELP

2006-10-03 09:29:49 · 7 answers · asked by Kally 1 in Mathematics

Diet suggestion would be most helpful....ouch it sure hurt ....talk about pain in the you-know-what

2006-10-03 09:29:44 · 13 answers · asked by Lovely B 3 in Medicine

Is it the seperation of two stands? Am I right?

2006-10-03 09:28:26 · 2 answers · asked by thunderbomb90 3 in Biology

I just thought about that in class. What's smaller than an atom? Please try not to use big words! Take it easy on my tiny 9th grade brain! Please, and thanx!

2006-10-03 09:28:19 · 9 answers · asked by Read the nametag, Duh! 4 in Chemistry

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2006-10-03 09:28:13 · 18 answers · asked by A10 1 in Geography

2006-10-03 09:27:45 · 11 answers · asked by greenwillowtrie 3 in Physics

Again, the problem is [A/(s^2+1)] + [B/(s+1)] + [C/(s-1)] = 4
And I need to solve for A,B, &C
I know how to solve for B and C, but I can't get the answer to A.

2006-10-03 09:25:03 · 4 answers · asked by Anonymous in Mathematics

Could anybody briefly descibe the following functions of a burner and how they fit in with each other.
Venturi, venturi throat, Mixing tube, burner body.
They all seem very closely related.
Thanks

2006-10-03 09:24:48 · 4 answers · asked by anthony r 1 in Engineering

2006-10-03 09:24:20 · 1 answers · asked by Anonymous in Mathematics

2006-10-03 09:23:55 · 21 answers · asked by www.mybodyandsoles.co.uk 1 in Physics

The measurements of the room is 9 1/2 FT x 5 FT. How do i figure the sqare footage?

2006-10-03 09:22:12 · 11 answers · asked by Kayla L 1 in Mathematics

2006-10-03 09:22:02 · 17 answers · asked by Anonymous in Biology

2006-10-03 09:21:27 · 1 answers · asked by shortmonkey300 1 in Other - Science