A new language uses only the letters A, B, C, D, and E. The letters A and E are called vowels, while the letters B, C and D are called consonants. A sequence of letters is called a word if it does not include the same letter twice in a row, and it does not include two vowels in a row. How many words are there in this language that are 13 letters long and that begin with a consonant?
A new language uses only the letters A, B, C, D, and E. The letters A and E are called vowels, while the letters B, C and D are called consonants. A sequence of letters is called a word if it does not include the same letter twice in a row, and it does not include two vowels in a row. How many words are there in this language that are 13 letters long and that begin with a consonant?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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answer on chegg is wrong. answer should be around 17 xxx xxx (17 million something).

Transcribed Image Text:A new language uses only the letters A, B, C, D, and E. The letters A and E are called vowels,
while the letters B, C and D are called consonants. A sequence of letters is called a word if
it does not include the same letter twice in a row, and it does not include two vowels in a
row. How many words are there in this language that are 13 letters long and that begin with
a consonant?
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