Mathematics - 15 September 2006

There are 75 students in a PE class. Every student in the
class plays exactly one 1-0n-1 basketball game with every other student
in the class. How many total games will be played?

My guess is 75 times 75= 5,625 Is this right? If not where did I go wrong?

Thanks,

Alex

2006-09-15 07:00:31 · 9 answers · asked by Osiris2067 4

Well??

2006-09-15 06:53:38 · 37 answers · asked by Anonymous

what is the limit of (2x^2+3)^(1/2) - (2x^2-5)^(1/2) as x-->infinity

that is: the limit of the squareroot of (2x^2+3) minus the squareroot of (2x^2-5), as x approaches infinity.

Can you show me the steps algebraicly? I had it on a test yesterday and could only solve it by graphing it.

Also how do you algabraicly solve limits as x--> infinity when it is not a rational function?

2006-09-15 06:51:27 · 7 answers · asked by bodicus 3

2006-09-15 06:38:25 · 19 answers · asked by KeenKumar 2

using a pencil, draw an angle. tri-sect the angle using compass and a straight edge.

2006-09-15 06:24:04 · 3 answers · asked by donduck511 1

2006-09-15 06:12:22 · 13 answers · asked by Josh 5

Basically, i don't understand how numbers, when on the outside of the first bracket, effect the equation when its brackets are being expanded.

2006-09-15 06:05:17 · 16 answers · asked by 2112 1

2006-09-15 05:45:07 · 21 answers · asked by Anonymous

2006-09-15 05:10:51 · 4 answers · asked by Padmini Gopalan 4

Would you mind to post it?

2006-09-15 04:42:42 · 5 answers · asked by CHESSLARUS 7

2006-09-15 04:27:51 · 8 answers · asked by confused 1

These aren't my homework questions, they're what I need to know to do my homework questions:

Given a Weibull distribution with parameters a and Lambda, how do you find the median and percentiles?

Given n trials of that same distribution, how do you find expectation and variance of a certain X value (like, the number of trials in the n that are above X)?

Given a beta distribution with parameters a and b, how do you find the state space of the distribution, as well as overall expectation and variance and P(X<=Y) for some value X and Y?

In my previous stats class we only did normal distributions, so I'm a bit lost when it comes to these Weibull and Beta distributions.

2006-09-15 04:27:08 · 3 answers · asked by Anonymous 3

|2x + a| = |x| - a , a>0

Please solve the above linear equation in order to find x. Please show me the steps that u have to follow to solve it so that i can understand such questions better. Thanks a lot for ur help!

2006-09-15 04:19:58 · 5 answers · asked by mad_integer 3

Solve each of the following inequalities:
(a) (16-x^2)/(x^2-9)>=0
and
(b) (x^2-9)*(x^2-16)<=0

2006-09-15 03:58:42 · 10 answers · asked by Lori B 1

I know this is a really dumb question but I need help. I have a total amount of $418.91 which includes a 6% sales tax. I need to figure out the original amount before the 6% sales tax was added. I am sure it is a simple answer but I am baffled at the moment. Thank you.

2006-09-15 03:49:34 · 10 answers · asked by Anonymous

2006-09-15 03:45:53 · 20 answers · asked by jason e 1

anyone heard of actuarial sciences? or in french:"mathematiques actuarielles"? its smth related to math and business too plz i need help very soon

2006-09-15 03:40:00 · 6 answers · asked by lebanon_jules 2

If sin0=0,
Opp.side/Hypotenuse=0
=> Op..side =0
=> the triangle does not exist
so how can sin0 degrees be defined?

Similiarly,
Cosec90 =1
=> Hypotenuse/opp.side =1
=> Hypotenuse = opp.side
which is impossible in a rt. triangle so how can such angles be defined?

2006-09-15 03:31:51 · 8 answers · asked by Knightmare 1

They each pay £10 and leave the shop, it turns out the TV should have been £25, the sales assistant decides to pull a fast one and gives them £1 each back and keeps £2, this means they have each paid £9, 3 x 9 is £27 plus the £2 he has kept adds upto £29, what has happned to the £1???

2006-09-15 03:22:09 · 27 answers · asked by Anonymous

Square root(3x - 2) = 4 - x

Solve for x

Show the work.. I know the answer is 2, but how do you get there??

2006-09-15 02:56:40 · 12 answers · asked by Anonymous

I have no clue how to set up this problem to even start on it:

How much rum (40% alcohol) must be added to 2 Liters of punch to get a 15% alcohol happy punch mixture?

2006-09-15 02:52:41 · 5 answers · asked by James B 1

2006-09-15 02:42:45 · 15 answers · asked by pitsomos 2

2006-09-15 02:37:41 · 11 answers · asked by anna s 1

2006-09-15 02:27:31 · 3 answers · asked by grozav n 1

2006-09-15 01:42:50 · 22 answers · asked by Anonymous

2006-09-15 01:35:38 · 24 answers · asked by Anonymous

a person 66 in tall is standing 15 ft from a streetlight. if the person casts a shadow 84 in long, how tall is the streetlight?

i know i have to set up a proportion. thanks for the help.

2006-09-15 01:28:35 · 8 answers · asked by shih rips 6

2006-09-15 01:10:16 · 4 answers · asked by gauravragtah 4

This is a question we were asked many years ago in a general maths session at a teacher training college. There is an answer although I am happy to consider creative responses.

2006-09-15 00:42:46 · 37 answers · asked by Headcase 2

a 174 ft long fence is placed around the perimeter of a rectangular pool that has a 3 ft sidewalk around it. the actual pool w/o the sidewalk is twice as long as it is wide. what is the dimensions of the pool w/o the sidewalk?

thanks for the help.

2006-09-15 00:40:15 · 6 answers · asked by shih rips 6