Mathematics, 21.01.2021 18:50 staceyfrog2002ovw02g

Which expression represents the number of possible combinations of n items taken r at a time? o
nl
(n-1)!
O
n-7)
(n-1)
O
(n-nal
ni

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Which expression represents the number of possible combinations of n items taken r at a time? o

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Which expression represents the number of possible combinations of n items taken r at a time? o nl (n-1)! O n-7) (n-1) O (n-nal ni

Answers

Another question on Mathematics

Which expression represents the number of possible combinations of n items taken r at a time? o
nl
(n-1)!
O
n-7)
(n-1)
O
(n-nal
ni