How many integers between 1000 and 10,000 (no leading Os): (a) Distinct digits? Explain your answer. (b) Repetition of digits allowed but with no 2 or 4? Explain your answer. (c) Distinct digits and at least one of 2 and 4 must appear? Explain your answer.

College Algebra
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ISBN:9781337282291
Author:Ron Larson
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Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
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How many integers between 1000 and 10,000 (no leading Os):
(a) Distinct digits? Explain your answer.
(b) Repetition of digits allowed but with no 2 or 4? Explain your answer.
(c) Distinct digits and at least one of 2 and 4 must appear? Explain your answer.
Transcribed Image Text:How many integers between 1000 and 10,000 (no leading Os): (a) Distinct digits? Explain your answer. (b) Repetition of digits allowed but with no 2 or 4? Explain your answer. (c) Distinct digits and at least one of 2 and 4 must appear? Explain your answer.
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