anonymous
  • anonymous
9 students volunteer for a committee. How many different 7-person committees can be chosen?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Any options?
anonymous
  • anonymous
A.181,440 B.36 C.362,880 D.1
wolf1728
  • wolf1728
You want to choose 7 people from a set of 9

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More answers

anonymous
  • anonymous
9 C 7
anonymous
  • anonymous
@Nasa7
anonymous
  • anonymous
You use the formula of nCr. n is the total number you are choosing from. r is the number you want to choose.
wolf1728
  • wolf1728
The formula is n! / (r! * (n-r)!) where n is 9 and r is 7
anonymous
  • anonymous
yep @wolf1728 !
anonymous
  • anonymous
9!/(7!*(9-7)!)
wolf1728
  • wolf1728
9! / (7! * 2!) which equals 9 * 8 / 2 = 72 / 2 = 36 which is B
anonymous
  • anonymous
Thanks a lot the problem was that i needed a calculator @wolf1728
wolf1728
  • wolf1728
Actually, if you cancel the factors correctly you don't need a calculator
anonymous
  • anonymous
thanks anyway , i have not took math and i forgot all of this , this is for a different class (CCP) @wolf1728
anonymous
  • anonymous
Sorry I just saw your tag back I see @wolf1728 is helping you now :D

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