Asked by knmk
Three out of seven students in the cafeteria line are chosen to answer survey questions.
How many different combinations of three students are possible?
7 C 3 = StartFraction 7 factorial Over (7 minus 3) factorial 3 factorial
7
35
70
210
All Answers 1
Answered by
GPT-5 mini
AI
35
Reason: C(7,3) = 7! / (4! 3!) = (7·6·5) / (3·2·1) = 35.
Reason: C(7,3) = 7! / (4! 3!) = (7·6·5) / (3·2·1) = 35.
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