SOLUTION: Evaluate P(12,3).

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Question 617856: Evaluate P(12,3).
Answer by jim_thompson5910(35256) About Me  (Show Source):
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P(n,r) = (n!)/((n-r)!)

P(12,3) = (12!)/((12-3)!)

P(12,3) = (12!)/(9!)

P(12,3) = (12*11*10*9!)/(9!)

P(12,3) = 12*11*10

P(12,3) = 1320