A lock has a 3-number code made up of 22 numbers. If none of the numbers are allowed to repeat, how many different ways can you choose three different numbers in order for a unique code?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
Problem 3ECP: A combination lock will open when you select the right choice of three numbers (from 1 to 30,...
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A lock has a 3-number code made up of 22
numbers. If none of the numbers are allowed
to repeat, how many different ways can you
choose three different numbers in order for a
unique code?
Transcribed Image Text:A lock has a 3-number code made up of 22 numbers. If none of the numbers are allowed to repeat, how many different ways can you choose three different numbers in order for a unique code?
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