## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 10 Counting Methods and Probability - 10.1 Apply the counting Principles and Permutations - 10.1 Exercises - Skill Practice - Page 687: 11

See below.

#### Work Step by Step

a) Using the Fundamental Counting Principle the number of possible choices is $26\cdot26\cdot26\cdot26\cdot10\cdot10\cdot10=456976000$ b) Using the Fundamental Counting Principle and the fact that the number of possible numbers/letters decreases by $1$ if we choose a number/letter, the number of possible choices is $26\cdot25\cdot24\cdot23\cdot10\cdot9\cdot8=258336000$

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.