3 years ago

A manager must select 5 delivery locations from 9 that are available. Find the number of

1 answer:

6 0

$C^9_5=\dfrac{9!}{5!4!}=\dfrac{6\cdot7\cdot8\cdot9}{2\cdot3\cdot4}=2\cdot7\cdot9=126$

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