## Algebra and Trigonometry 10th Edition

Published by Cengage Learning

# Chapter 11 - 11.6 - Counting Principles - 11.6 Exercises - Page 823: 5

combinations

#### Work Step by Step

Order is not important means that if the order in which each of the $r$ elements are selected is changed, the final result will be the same. It is like receiving a 50 dollar bill plus a 10 dollar bill. The order is not important. The final result is that you have received 60 dollars.

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