## Algebra and Trigonometry 10th Edition

Published by Cengage Learning

# Chapter 11 - 11.6 - Counting Principles - 11.6 Exercises - Page 823: 24d

#### Answer

$4500$ four-digit numbers are possible.

#### Work Step by Step

First digit: 9 choices Second digit: 10 choices Third digit: 10 choices Fourth digit: 5 choices: $0,2,4,6,8$ Using the Fundamental Counting Principle: $9\times10\times10\times5=4500$

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.