The serial number on a new twenty-dollar bill consists of two letters followed by nine digits and then a letter. How many different serial numbers are possible, given the following conditions? (a) Letters and digits cannot be repeated. (b) Letters and digits can be repeated. (c) The first and last letters are repeatable vowels, the second letter is a consonant, and the digits can be repeated. (Let y be a consonant)
The serial number on a new twenty-dollar bill consists of two letters followed by nine digits and then a letter. How many different serial numbers are possible, given the following conditions? (a) Letters and digits cannot be repeated. (b) Letters and digits can be repeated. (c) The first and last letters are repeatable vowels, the second letter is a consonant, and the digits can be repeated. (Let y be a consonant)
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.CT: Chapter Test
Problem 3CT: An Internet service provider requires its customer to select a password consisting of four letters...
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The serial number on a new twenty-dollar bill consists of two letters followed by nine digits and then a letter. How many different serial numbers are possible, given the following conditions?
(a) Letters and digits cannot be repeated.
(b) Letters and digits can be repeated.
(c) The first and last letters are repeatable vowels, the second letter is a consonant, and the digits can be repeated. (Let y be a consonant)
(b) Letters and digits can be repeated.
(c) The first and last letters are repeatable vowels, the second letter is a consonant, and the digits can be repeated. (Let y be a consonant)
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