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3 years ago

11

9. Based on the patterns observed in Exercises 5–8, describe a general formula that can be used to find the number of permutatio

ns of n things taken ???? at a time, or nPr

1 answer:

evablogger [386]3 years ago

6 0

Answer: a.(n-1)(n-2)...(n-r+1)

Step-by-step explanation:

a permutation of things taken at a time can be found using the formula.

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