Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 10 Counting Methods and Probability - 10.1 Apply the counting Principles and Permutations - Guided Practice for Example 5 - Page 685: 7

Answer

$$3991680$$

Work Step by Step

We know the following equation for permutations: $$nP_r=\frac{n!}{(n-r)!}$$ Thus, we find: $$\frac{12!}{\left(12-7\right)!}\\ 3991680$$
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