How many 5-digit numbers can be made from the digits 1 to 9 if: a) Repetition of digits is allowed? b) Repetition of digits is allowed and the numberInust be odd? c) Repetition of digits is allowed and the number must include at least one 3?

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section: Chapter Questions

Problem 64RE

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Question

How many 5-digit numbers can be made from the digits 1 to 9 if: a) Repetition of digits is allowed? b) Repetition of digits is allowed and the numberInust be odd? c) Repetition of digits is allowed and the number must include at least one 3? d) Repetition of digits is not allowed? e) Repetition of digits is not allowed and the number must include at least one 3? f) Repetition of digits is not allowed and the number must be even and greater than 70000?

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