Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 13 - Probability - Mid-Chapter Quiz - Page 843: 18



Work Step by Step

Order does matter, so we must use a permutation. We know that: $_nP_r = \frac{n!}{(n-r)!}$ $_9P_5 = \frac{9!}{(9-5)!}$ $\frac{9!}{4!}$ We also know that: $x! = x(x-1)(x-2)...(1)$ Thus, we have: 15120
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