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There are 16 students who choose up sides to play soccer. How many different teams of 8 can be formed?
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You have to choose 8 different people from 16, so it is \(16C8\).
\[16C8 = {16! \over (16 - 8)! 8!}\]
I feel that you know factorials already.
this is for summer school last day is tomorrow
careful here...
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