Asked by Marie
7) A theater is staging a series of 10 different plays.You want to attend at least 2 of the plays.How many different combinations of plays can you attend?
Answers
Answered by
MathMate
10C2 = 10!/((10-2)!2!)
x!=factorial x=x(x-1)(x-2)....(2)(1)
x!=factorial x=x(x-1)(x-2)....(2)(1)
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