Math Question
![\( \underset{\substack{\text { Use: } \\ \text { to solve the combination. }}}{ }=\frac{n !}{k !(n-k) !} \)
At a Chinese buffet, there are five entree selections. If two entrees may be selected, how many ways may the
plates be filled?
[?] ways](https://d3hlidq5bf9vg0.cloudfront.net/app-server-student/2022/3/11/40057da0-c499-426f-aed8-919e70f45c39.jpg "\( \underset{\substack{\text { Use: } \\ \text { to solve the combination. }}}{ }=\frac{n !}{k !(n-k) !} \)
At a Chinese buffet, there are five entree selections. If two entrees may be selected, how many ways may the
plates be filled?
[?] ways")
Solution
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