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Mathematics 20 Online
OpenStudy (anonymous):

In how many ways can a committee of 4 be chosen from a group of 9 people? a.) 36 b.)126 c.)3,024

OpenStudy (anonymous):

i tried 9*8*7*6 , but i think that was wrong

OpenStudy (anonymous):

9C2 do you know about combinatronics ?

OpenStudy (anonymous):

i'm actually learning about it now

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