Mathematics - 20 August 2006

2006-08-20 16:37:26 · 5 answers · asked by Anonymous

The Team plays 36 games this year. At mid-season they won 16 games . How many of the remaining games must they win in order to win at least 80%of all their games. I know the answer is 13 remaining games cause i guessed and checked but i don't know how to set this up?

2006-08-20 16:28:06 · 7 answers · asked by Shirley B 1

tnx for ur answers........ T_T

2006-08-20 16:15:25 · 3 answers · asked by ~nothing^^~ 2

Suppose we want to integrate a function g(x) for a certain space D. Let I be the result of the integration.

Is it true that to get and estimate of I, one can do a Monte Carlo simulation by taking sum of g(Xi)/m where m is the total number of sample points and Xi are randomly sampled points from a uniform distribution in D?

E.g.

Say g(x) = x and we want to integrate from 0 to 100, ie D is 0 to 100.

We take say 6 points, 0, 20, 40, 60, 80, 100, assume they are points gotten from a uniform distribution from 0 to 100. so g(0) = 0, g(20) = 20, etc..

Sum them up is 0 + 20 + 40 +60 +80 + 100 = 300

Estimate = 300/6 = 50.

50 is the exact value of the integral.

The question is does this scheme work for every function g? Assume m can be extremely large, ie approaches infinity.

2006-08-20 16:03:14 · 2 answers · asked by ali 6

What does this mean i need help!!!

2006-08-20 15:54:51 · 7 answers · asked by Anonymous

the mathematical answer would be an infinite increase. but for example, if we had no pimples and get 19 pimples how would we calculate the percent increase in these kind of real cases?

2006-08-20 15:51:22 · 6 answers · asked by danlee6988 1

At a Concert, tickets for adults cost $4.00 and tickets for students cost $2.50. How many of each kind of ticket were purchased if 125 tickets were bought for 413.00 dollars ? Im having a lot of problems knowing how to set uo the equation plez help. thanks.

2006-08-20 15:49:18 · 8 answers · asked by Shirley B 1

2006-08-20 15:42:59 · 10 answers · asked by Anonymous

over the summer my mathmetic skills became a little rusty! i just forgot how to do these and the book doesnt give detailed info!

2006-08-20 15:40:21 · 9 answers · asked by Anonymous

I am live in China mainland,I like to play lottery.In china,there is one sort of lottery which names red & blue ball,1-33 number balls in red color and they would come forth seven entries,1-16 number in blue color and just one of they would come forth. Could any one in this world send me suitble software to predict the next times red & blue balls the would come forth?

2006-08-20 15:28:03 · 2 answers · asked by fred 1

A submarine sescended to a level 230 m below the surface of the ocean. Later it ascended 95 m and then dove 120 m. What was the new depth of the submarine?

2006-08-20 15:26:50 · 20 answers · asked by Anonymous

the imaginary number in question being i, where:

i = (-1)^(1/2)

and

(i)^(2) = -1

2006-08-20 15:12:29 · 8 answers · asked by Paul W 2

Hi,

On which web site can I learn artificial neural networks start from basic.

Many thanks

2006-08-20 14:56:35 · 2 answers · asked by 24hour 1

2006-08-20 14:52:59 · 49 answers · asked by El Chili Man 1

pls.. answers my questions now.... i need it now......if u now this meaning i will give u 10 points....... tnx

2006-08-20 14:13:54 · 6 answers · asked by ~nothing^^~ 2

the problem is 18-2y/4>3/2(y+1/3)=3/2-1/2y the answer is 2>y>or =1/2 but I can't figure out how they got the answer to this problem

2006-08-20 13:36:21 · 7 answers · asked by Anonymous

If I enter a fraction, it will either reduce it or give me my question as an answer. Example: I typed 26/6 and it gave me 13/3 instead of 4.33333.... I've looked in the menues and I can't find a way to change it so I can have a decimal answer like I can get on a simple calulator.

2006-08-20 13:18:05 · 5 answers · asked by Anonymous

2006-08-20 13:00:22 · 6 answers · asked by Ryan 1

does any1 kno a famous mathematics scientist?

2006-08-20 12:48:27 · 12 answers · asked by Anonymous

I have to memorize all the exact values for sin, cos, and tan. There's like 51 different numbers. Should I just go like one at a time and use flash cards or is there a better way?

2006-08-20 12:31:50 · 11 answers · asked by Anonymous

2006-08-20 12:00:35 · 0 answers · asked by chfine2004 1

2006-08-20 11:59:59 · 12 answers · asked by Anonymous

Proof by induction:

3n (less than or equal to) 3^n
n = element of all natural numbers

2006-08-20 11:58:02 · 4 answers · asked by Silvia 2

How do you change the back up battery on a TI-89 Titanium calculator? I can't figure it out! And I don't know where my manual is. I can't find one online either. Can anyone help?

2006-08-20 11:18:47 · 4 answers · asked by classical_maniac101 3

Just to clarify,is the three-sphere the only type of bounded three-dimensional space possible that contains no holes?

2006-08-20 11:16:35 · 5 answers · asked by redlens 3

tel mee

2006-08-20 11:10:23 · 5 answers · asked by rednekcoonhunter 2

think of a function as a math machine with an input an output Suppose the function A(x)=3x+1 that means if u put any number (x) into this function machin the machin will multiply the number by 3 and add 1 for example what is the output if 5 is the input? 5 times 3 plus 1=16 for the output thats written A(5)=16 suppose u join 2 function machines so that the output of the 1st one is connected to the input of the 2nd one lets make the 2nd function B(x)=x^2 if u put 2 into the A machine out comes 7 then seven is the input to the B machine which squares it and out comes 49 thats written B(A(2))=49
here are 5 functions
A(x)=2x-3
B(x)=x^2
C(x)=2x+1
D(x)=4x^2
E(x)=7x+5
i am going to connect them in alphabetical order and use 2 as the input number that would be written as E(D(C(B(A(2))))) the resulting output = ?
what arrangement of functions will produce the largest output with 2 as the input (each function used only once) i am looking for logical reasoning and algebra. Explain?

2006-08-20 11:08:23 · 3 answers · asked by searching4answers 2

If so what one and what is the sequence significance? If not do they hold any significance?

4 8 15 16 23 42

2006-08-20 11:06:34 · 30 answers · asked by Anonymous

2006-08-20 11:02:35 · 4 answers · asked by rednekcoonhunter 2

All fractions are seperate problems.

2006-08-20 10:57:58 · 17 answers · asked by Lisha 1