Problem 1. Let's consider the number of possibilities for a password. The following characters are allowed in our passwords: 26 lowercase letters ('a' to 'z'), 26 uppercase letters ('A' to 'Z'), and 10 digits ('0' to '1'). (a) How many possible password combinations are there of 8 to 12 characters? (This includes passwords of length 8 and 12.) (b) Suppose these passwords are no longer case sensitive. For example, 'a' and 'A' are no longer viewed as distinct characters. Now how many distinct possible password combinations are there? (c) Now, suppose our passwords are case sensitive again. Suppose passwords must be exactly 8 characters long and have exactly 1 number. How many password combinations are possible?
Problem 1. Let's consider the number of possibilities for a password. The following characters are allowed in our passwords: 26 lowercase letters ('a' to 'z'), 26 uppercase letters ('A' to 'Z'), and 10 digits ('0' to '1'). (a) How many possible password combinations are there of 8 to 12 characters? (This includes passwords of length 8 and 12.) (b) Suppose these passwords are no longer case sensitive. For example, 'a' and 'A' are no longer viewed as distinct characters. Now how many distinct possible password combinations are there? (c) Now, suppose our passwords are case sensitive again. Suppose passwords must be exactly 8 characters long and have exactly 1 number. How many password combinations are possible?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.2: Exponents And Radicals
Problem 92E
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leave answers as the sum and product of numbers. No need to calculate
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