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anonymous
 one year ago
9 students volunteer for a committee. How many different 7person committees can be chosen?
anonymous
 one year ago
9 students volunteer for a committee. How many different 7person committees can be chosen?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A.181,440 B.36 C.362,880 D.1

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2You want to choose 7 people from a set of 9

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You use the formula of nCr. n is the total number you are choosing from. r is the number you want to choose.

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2The formula is n! / (r! * (nr)!) where n is 9 and r is 7

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.29! / (7! * 2!) which equals 9 * 8 / 2 = 72 / 2 = 36 which is B

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks a lot the problem was that i needed a calculator @wolf1728

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2Actually, if you cancel the factors correctly you don't need a calculator

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks anyway , i have not took math and i forgot all of this , this is for a different class (CCP) @wolf1728

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sorry I just saw your tag back I see @wolf1728 is helping you now :D
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