Mathematics - 22 July 2006

You have three safety matches. How do u make out of them four without cheating(cutting them, adding another one,...) Come on, really simple question!!

2006-07-22 22:29:21 · 10 answers · asked by candygirl 2

1). one can be expressed as difference of two squares.
1 = 1.25 ^ (2) - 0.75 ^ (2)
one can be expressed as sum of two squares also.
true or false.
2).a ^ (n) - b ^ (n)can be expressed as difference of
two squares.
7 ^ (3) - 4 ^ (3) = 48 ^ (2) - 45 ^ (2).
can we write a ^ (n) - b ^ (n) = 1 from this

2006-07-22 21:28:33 · 2 answers · asked by rajesh bhowmick 2

1). as 1 can be expressed as difference of two squares
1 can be expressed as sum of two squares also.
true or false.
2).a ^ (n) - b ^ (n) can also be expressed as difference of
two squares. a ^ (n) - b ^ (n) =1 can we write this then?

2006-07-22 20:47:35 · 5 answers · asked by rajesh bhowmick 2

Infiniteness of space and time

Time:
There must have been something burning since infinity years ago. However, it would burn out after sometime. Therefore anything burning should have burnt out infinite years ago. (-infinity + x =-infinity)
2nd law of Thermodynamics states in layman terms that heat always flows downhill. (Entropy will always increase) unless work is done ( Guess by who :) ) How then do we still have a sun burning.

Space:
Three states of matter( Solid, liquids,Gas) and then you have a vacuum all compose Space. if you were to keep 'flying' out of space you would never reach an end. If you hit a wall then the wall extends further out. and so on a so forth out to infinity

So Mathmatically in an infinite amount of time this limited energy would dissipate through and infinite amount of space, leaving zero energy in any bounded area.


"And how many Signs in the heavens and the earth do they pass by? Yet they turn their faces away from them." [Quran 12:1

2006-07-22 20:17:20 · 16 answers · asked by Jamal 3

i have the number 13,56,26,25,28,39,what's the equation or method use to be able to get the numbers 18,26,35,36,43,24 for result. It's a math problem

2006-07-22 20:09:26 · 6 answers · asked by audianaaugustin 1

A prime number is an integer p whose only positive divisors are 1 and p itself.

2006-07-22 18:45:41 · 11 answers · asked by JoseABDris 2

How many REAL solutions for y are there in this equation

sqrt y+3 - sqrt y = 3?

0, 1, 2, or 3?

2006-07-22 18:34:06 · 9 answers · asked by samadhi97 1

undecagon has 11 sides. is the answer nine?

2006-07-22 18:00:42 · 7 answers · asked by ameliawht 2

http://img89.imageshack.us/my.php?image=netxc6.jpg

Question:
what is the total number of ways to reach from A to B in the network given ?


book's answer = 4x2x2x1=16

my answer= 4 x (4x2)x (4x2) x (2x1)

why my answer is wrong ?

my logic: see. the 2,3 level has 4 nodes ..and each of them have 2 ways...so, i did 4x2

similary, the last level before the end point has 2 nodes and they have 1 way so, i did 2x1


why my answer is wrong ?...why the number of nodes are not taken into count in the book's answer ?

2006-07-22 17:35:03 · 3 answers · asked by sanko 1

Here is a formula to help you figure it out...
Divide the speed of the rotation of the earth by the bra size of your wife (or girlfriend or sister). Multiply that by the date of my birth (1953) and subtract the number of letters in the above question.
Then add the age you reached puberty squared.
The equation should look like this...
S/B*1953-20+P*P=MY AGE

p.s. yeah, I know you can figure it out just from my date of birth, but that wouldnt be as funny, would it?

2006-07-22 17:28:54 · 10 answers · asked by opjames 4

the measure of the largest angle

2006-07-22 17:26:11 · 6 answers · asked by ameliawht 2

How many girls does a guy have to be with until he's called a player?

2006-07-22 17:22:31 · 8 answers · asked by neddy 2

2006-07-22 17:19:28 · 6 answers · asked by ameliawht 2

calculate the smallest of the eight angles.

2006-07-22 16:55:24 · 5 answers · asked by ameliawht 2

geometry question.

2006-07-22 16:31:32 · 8 answers · asked by ameliawht 2

I need to know. I can't remember how to calculate it. I tried and got it really wrong!

2006-07-22 16:09:10 · 10 answers · asked by donnamagreevy 1

2006-07-22 15:31:29 · 10 answers · asked by clickit 1

pi/12 (180/pi) = 15 (degrees)

How did they get 15?

2006-07-22 15:30:51 · 8 answers · asked by Galadriel 3

2006-07-22 15:26:40 · 14 answers · asked by Ryan S 1

Given a circle with a radius of "a", what is the smallest area of an isosceles triangle circumscribed on the circle (circle inside of triangle)? The area of the triangle will always be larger than that of the circle. I need to know HOW to do this. I can then figure the answer on my own. I tried using an angle in the open interval from 0 to pi/2. I figured the side lengths of the triangle in terms of the angle and came up with a function. The function didn't match my logic. Logically speaking, the area of the triangle will never approach 0 unless "a" approaches 0. The function arbitrarily approached 0 as the angle approached pi/2. Please help. I need this by Wednesday. Thanks for any and all the help!

2006-07-22 14:15:03 · 5 answers · asked by Lawrence 1

2006-07-22 14:04:55 · 19 answers · asked by Its Not Me 1

2006-07-22 13:42:06 · 2 answers · asked by Anonymous

2006-07-22 13:21:59 · 30 answers · asked by stuart j 1

2006-07-22 11:59:55 · 5 answers · asked by Anonymous

i need help finding the limit as x approaches 2 for the function 1/(cuberoot(x^2 -4))

sorry, thats the clearest way i can write the problem. in words its 1 divided by the cube root of the quantity x squared minus 4.

i understand most of how limits work, but im real stuck on how to go about this one. could someone at least get me started?

thanks so much

2006-07-22 11:27:05 · 8 answers · asked by lebeauciel 3

Determine the equivalent resistance of a infinite series-parallel resistor network. (series-parallel-series-parallel ect.) See how go you are at doing algebra. You have to show your work to get full credit (10 points)

2006-07-22 11:24:20 · 6 answers · asked by DoctaB01 2

2006-07-22 10:49:42 · 8 answers · asked by smallspy 1

Write a true equation using only:
1
0
e
i
pi
and any operators you wish.

2006-07-22 10:39:18 · 6 answers · asked by esskier 1

the storey hAPPEND ABOUT 1 YEAR AGO SHE GRADUATED AND THEN WENT ON A TRIP TO ARUBA WITH HER CLASS THEY STILL HAVENT FOUND HER SHE DISSIPERD IN ARUBA AND NO SIGNS OF HER HAVE BEEN FOUNDWHO THINKS SHE IS STILL ALIVE

2006-07-22 10:07:17 · 8 answers · asked by hayy<3 2

2006-07-22 09:49:07 · 5 answers · asked by dawn1812000 2