In a certain country, area codes have three digits and are subject to the following restrictions. The first digit cannot be 0, 1, 2, or 3; the second digit can only be 0, 1, 2, 3, or 4; and there are no restrictions on the third digit. How many different area codes are possible?
In a certain country, area codes have three digits and are subject to the following restrictions. The first digit cannot be 0, 1, 2, or 3; the second digit can only be 0, 1, 2, 3, or 4; and there are no restrictions on the third digit. How many different area codes are possible?
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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In a certain country, area codes have three digits and are subject to the following restrictions. The first digit cannot be 0, 1, 2, or 3; the second digit can only be 0, 1, 2, 3, or 4; and there are no restrictions on the third digit.
How many different area codes are possible?
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