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Evaluate 7!/5!2! choices 1 21 42
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2 votes
Evaluate 7!/5!2!
choices
1
21
42

User KoalaZub
by
8.4k points

2 Answers

3 votes

The correct answer is B. 21

User Kishan Dhamat
by
8.6k points
2 votes

(7!)/(5!2!) = (7 * 6 * 5 * 4 * 3 * 2 * 1)/(5 * 4 * 3 * 2 * 1 * 2 * 1) = (7 * 6)/(2 * 1) = (42)/(2) = 21

The answer is B.
User Greg Spears
by
8.0k points
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