Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 12 - Data Analysis and Probability - 12-6 Permutations and Combinations - Practice and Problem-Solving Exercises - Page 754: 17

Answer

5040

Work Step by Step

Use the formula of permutation: $_{n}$P$_{r}$=$\frac{n!}{(n-r)!}$. Plug in 7 for N and 6 for R: $_{n}$P$_{r}$=$\frac{n!}{(n-r)!}$ $_{7}$P$_{6}$=$\frac{7!}{(7-6)!}$ -simplify- $_{7}$P$_{6}$=$\frac{7!}{1!}$ -write using factorial- $_{7}$P$_{6}$=$\frac{7*6*5*4*3*2*1}{1}$ -simplify- $_{7}$P$_{6}$=5040
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