Mathematics - 23 September 2006

the square of a number is 56 more than the number its self. what is the number?

2006-09-23 10:56:24 · 9 answers · asked by ballet_tigger 3

In hABC, b=3, c=4, and A=45degrees. Expreesed in simplest radical form, what is the area of hABC?
What i want to find out is what is the meaning of "h" in "hABC"?

2006-09-23 10:55:40 · 3 answers · asked by Anonymous

Remember infinity is THAT number

2006-09-23 10:54:28 · 11 answers · asked by doorseeker 1

I'm looking for a way for 12 people to compete in a tournament without any overlaps or vacancies. Every player should be able to play an equal amount of rounds and the double elimination bracket should not lead to the final unfairly; the champion should always be able to lose one game.

Also, I'm looking for how to rank the players when 8 of the players have known records and 4 of the players are invited.

2006-09-23 10:47:57 · 4 answers · asked by Mikey C 5

why x,y,z is the variables we always use in math...what its history....

2006-09-23 10:47:20 · 3 answers · asked by Kaye Jayne A 1

2006-09-23 10:46:23 · 17 answers · asked by hobble36 2

2006-09-23 10:42:21 · 14 answers · asked by Anonymous

thise comes from :the surface area formula: S=(pi)(r) (square root of r^2 + h^2) where the h=5 and s=100 how do i solve for r ??? please include steps to follow, thanks!!!

2006-09-23 10:24:09 · 6 answers · asked by niloda987 1

how did they figure out the formula and why does it work?

2006-09-23 10:20:05 · 5 answers · asked by Ganbatteru 3

steps n answer.
thx

2006-09-23 10:11:02 · 6 answers · asked by speeds3mu 1

Q2)To get a feeling for the size of cells and to practice the use if the metric system, consider the following:

a)the human brain weighs about 1Kg and contain about 10^11 cells. Calculate the average size of a brain cell(although we know that their size vary widly)?

b) Assuming that each cell is entirely filled with water (1 cm^3 of water weighs 1g). what would be the length of one side average-size brain cell if it were a simple cube?

C) if the cell were spread out as a thin layer that is only a single cell thick, how many pages of your cell biology textbook would this layer cover?

it has relastion between math &biolog

2006-09-23 10:08:14 · 3 answers · asked by Huda N 1

Integration by parts - Step by step

2006-09-23 09:58:44 · 5 answers · asked by thegame1083 1

Integration by parts - Step by step

2006-09-23 09:57:41 · 3 answers · asked by thegame1083 1

Integration by parts - Step by step

2006-09-23 09:56:44 · 3 answers · asked by thegame1083 1

Integration by parts - Step by step

2006-09-23 09:55:39 · 4 answers · asked by thegame1083 1

How would I develop an 1-variable algorithm whose output is the sequence "even, even, odd, odd, ...". The magnitude is unimportant, only the even/odd of the number.

2006-09-23 09:54:17 · 4 answers · asked by timmy_n 1

How would I solve the follwing problem?

6 - t over 4 = 8 + t over 2.

I know the answer is negative 8 thirds, but I dont understand how to get it.

2006-09-23 09:48:52 · 3 answers · asked by Anonymous

Maximize z = 6x + 3y subject to:
2x + y < 11
3x + 4y < 24
x > 0 y > 0

2006-09-23 09:27:07 · 5 answers · asked by nileri_1 2

Find two values which satisfy the following:

Square pyramid number + 1 = Tetrahedral number

(Square pyramid numbers are made up of consecutive squares, i.e. 1 + 4 + 9 + 16... for each layer of the pyramid. Tetrahedral numbers are made up of consecutive triangular numbers, i.e. 1 + 3 + 6 +10 +15... for each layer of the triangle-based pyramid.)

One of the answers is 55 and 56. What is the other??

2006-09-23 09:23:49 · 4 answers · asked by Anonymous

a.y<=0.02
b.y>=20
c.y<=-20
d.y>=50
e.y>=15
f.y<=0.5

2006-09-23 08:56:12 · 7 answers · asked by cherryvalley2006 2

a.a<4.8
b.a>36
c.a>9.3
d.a<2
e.a<0
f.a>1/20

2006-09-23 08:54:29 · 7 answers · asked by cherryvalley2006 2

OK, I know that this sounds like a dumb question but I'm having trouble trying to find out how to put in the matrix in TI-89 and get it in the row echelon form, reduced row echelon form, to solve it and so on. If you are familiar with TI-89 please help me to find that out. Please, describe me the simplest steps on some example.Thank you!

2006-09-23 08:42:38 · 4 answers · asked by Anonymous

2006-09-23 08:35:11 · 11 answers · asked by grobmyerjohn 1

2006-09-23 08:32:12 · 8 answers · asked by Gina C 2

2006-09-23 08:17:35 · 3 answers · asked by nihilistic_reality 2

How do you calculate the probability of getting tails on a coin "n" number of times in a row?

2006-09-23 08:15:34 · 6 answers · asked by Bob 3

15 pennies, 2 players. Each player removes 1-5 pennies per turn. The player to remove the last penny wins. How can you guarantee victory?

I know this has something to do with leaving the other player with 6 pennies on their last turn. But what comes before that?

2006-09-23 08:03:23 · 4 answers · asked by geez_louise_holy_moley 1

options given are: 243,467-first;302,604-second;203,406-third;203,406,609-fourth

2006-09-23 07:48:03 · 3 answers · asked by amit g 1

For example 2 could be 2/1?

2006-09-23 07:44:44 · 8 answers · asked by nihilistic_reality 2

i have this philosophy class and the teacher gave us an extra credit opportunity to find an example of any situation where there is no "chance" involved in the outcome...card games dont count because u can mathematically figure out you probablility of winnin gjust like in the lotto...so if u have anyother ideas please pass them along to me thanks...

2006-09-23 07:38:50 · 6 answers · asked by NICOLE 1