Mathematics - 13 October 2006

2006-10-13 23:48:28 · 10 answers · asked by Anonymous

2006-10-13 23:36:11 · 10 answers · asked by 1q1w2w r 1

2006-10-13 23:05:42 · 8 answers · asked by domoteka 1 1

2006-10-13 23:04:25 · 13 answers · asked by domoteka 1 1

Prove that any number having any power can be expressed as difference of two squares & also prove that the numbers of the form 4t+2 canot be expressed as difference of two squares.

2006-10-13 22:39:56 · 5 answers · asked by rajesh bhowmick 2

I need a real life collection of natural number sequences I already have the golden section, and fibonnaci are there any more?

2006-10-13 21:28:58 · 4 answers · asked by Anonymous

Given two intersecting circles with different centres and different sizes, how to draw a line which is tangent to both of them?
(step by step please)

2006-10-13 21:27:11 · 3 answers · asked by English Learner 2

2006-10-13 19:52:28 · 5 answers · asked by vmohini 1

2006-10-13 19:37:20 · 12 answers · asked by donk 3

the answer starts with b.......

2006-10-13 19:36:12 · 8 answers · asked by wilfredo jr. f 1

Complete the symmetry by filling the blanks and get 10 points.
(It is very easy, just try it)

> 1 x 1 = 1
> 11 x 11 = 121
> 111 x 111 = 12321
> 1111 x 1111 = 1234321
> - - - - - x - - - - - = 123454321
> 111111 x 111111 = 12345654321
> 1111111 x 1111111 = - - - - - - - - - - - - -
> - - - - - - - - x 11111111 = 123456787654321
> 111111111 x 111111111= - - - - - - - - - - - - - - - - -

2006-10-13 19:24:26 · 8 answers · asked by Anonymous

where is the higest water fall in the world

2006-10-13 18:57:02 · 10 answers · asked by Anonymous

The TI-89 has a lot of new features. Is there a web site that teaches how to use it? How to graph? How to evaluate functions? How to solve and graph rational equations? etc. etc. etc.

2006-10-13 18:35:03 · 3 answers · asked by Anonymous

2006-10-13 18:16:06 · 12 answers · asked by Toby_Wan_Kenoby 2

When a certain radioactive elemnt decays, the amount, in milligrams, that remain after "t" years can be approximated by the function "A" above. Apporximately how many years would it take for an initial amount of 800 miligrams of this element to decay to 400 miligrams.

2006-10-13 17:54:09 · 6 answers · asked by Anonymous

Could someone help me find the derivative of (tanx)^-1? Does finding it have anything to do with tan^-1(x)? Thanks.

2006-10-13 17:31:48 · 11 answers · asked by Captain Socialism 2

2006-10-13 17:24:15 · 1 answers · asked by Anonymous

ok i am trying to program my calculator with formulas and i'm having quite a bit of trouble progaming in the midpoint fromula. so does anyone know how it should be programed in?

2006-10-13 17:17:11 · 5 answers · asked by Anonymous

2006-10-13 17:10:04 · 17 answers · asked by elakerfan2002 1

living i jaipur ,india

2006-10-13 17:02:14 · 2 answers · asked by shankey k 1

First, we know that girls require time and money, so:
girls = time x money

And we all know that "time is money," so :
time = money

Therefore:
girls = money x money

which means that:
girls= money^2 (money squared)

And because money is the root of all evil:
money = square root of evil

Which means that:
money^2=evil

And since:
girls= money^2

And:
money^2= evil

We can conclude that:
Girls = Evil

2006-10-13 16:49:58 · 24 answers · asked by penguinluvinman 4

There are three problems that follow this, they are what needs to be solved. I am so confused. If you would like a link to the image of the problems instead than reading this, you can find the exact same information at the far bottom of the image here http://palcs.digitalschooling.com/brand/media/images/1193//Algebra_2/New%20Algebra%202/New%20Lessons/homework%20lesson%2012.JPG

Since you don't know whether X is positive or negative, you have to consider two cases: (part 1) X > 0 or (part 2) X < 0.

Part 1.) X > 0
Multiply both sides of the given inequality by 2x, which is positive.
10+x < 6x => 10 < 5x => 2 < x
In this case, the solution is x > 0 and x > 2, or x > 2.

Part 2.) X < 0
Proceeding as before, except that now 2x is negative, you have
10+x > 6x => 10 > 5x => 2 > x
The solution is x < 0 and x < 2, or x < 0.

[[[A / indicates a fraction]]]
Problem a.) 11/3 - 2/x > 5

Problem b.) 8/x - 7 < 9

Problem c.) 3/4 + 12/x-1 > 1




Thanks so much in advance.

2006-10-13 16:41:00 · 5 answers · asked by Ryan 1

Thank u!

2006-10-13 16:27:45 · 4 answers · asked by double B 2

An understanding would be great on how to solve a problem like this.

It has two parts (a, and b) to it.

a.) Suppose A and B are positive and A < B. Explain how you know that A^2 < B^2.

b.) Suppose you know that for two numbers A and B, A^2 < B^2. Does it follow that A < B? Discuss the different cases depending on which of the two numbers A and B is positive.


Thanks in advance, it means a bunch. (I am NOT just scrounging for answers, I would like an understanding, although answers would be extremely helpful to see how they are gotten. Thanks.)

2006-10-13 16:23:50 · 8 answers · asked by Ryan 1

2006-10-13 16:18:20 · 6 answers · asked by Bob 3

2006-10-13 16:14:31 · 4 answers · asked by michelle anne r 1

2006-10-13 16:07:32 · 7 answers · asked by double B 2

2006-10-13 15:56:11 · 1 answers · asked by prettiful! 1

2006-10-13 15:51:07 · 3 answers · asked by NONE N 1

f(x) = x+1/ sqrt x

derivative of x plus 1 divided by square root of x

I'm stuck on this one. Thank you for your help if you know how to solve it.

2006-10-13 15:47:47 · 6 answers · asked by beautypsychic 3