How many sequences of 5 letters satisfy all three of the following conditions? • All 5 letters must be distinct. • At least one letter must be a consonant. • At least one letter must be a vowel. (There are 21 consonants and 5 vowels in the alphabet.)
How many sequences of 5 letters satisfy all three of the following conditions? • All 5 letters must be distinct. • At least one letter must be a consonant. • At least one letter must be a vowel. (There are 21 consonants and 5 vowels in the alphabet.)
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
Problem 22E: License Plate Numbers In a certain state, each automobile license plate number consists of two...
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How many sequences of 5 letters satisfy all three of the following conditions?
• All 5 letters must be distinct.
• At least one letter must be a consonant.
• At least one letter must be a vowel.
(There are 21 consonants and 5 vowels in the alphabet.)
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