Walter is creating a 5 digit code for an electronic lock. He can use any number, but cannot use the same digit twice. How many possible lock combinations are there?

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Walter is creating a 5 digit code for an electronic lock. He can use any number, but cannot use the same digit twice. How many possible lock combinations are there?

 

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