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: 21



Work Step by Step

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