4. A social security number contains nine digits, such as 004-55-5555. How many different social security numbers(SSN) can be formed if the first two digits are both 0? Answer= SSNS
4. A social security number contains nine digits, such as 004-55-5555. How many different social security numbers(SSN) can be formed if the first two digits are both 0? Answer= SSNS
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 35SE: The set, S consists of 900,000000 whole numbers, each being the same number of digits long. How many...
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