3 years ago

17. Evaluate. Show your work. a. 6! b. 6P5 c. 12C3

1 answer:

3 0

$6!=1\cdot2\cdot3\cdot4\cdot5\cdot6=720\\\\
6P5=\dfrac{6!}{1!}=6!=720\\\\
12C3=\dfrac{12!}{3!9!}=\dfrac{10\cdot11\cdot12}{2\cdot3}=220$

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