To log onto a certain website, they require the customer to create a unique username. The username must start with three letters, which cannot be repeated, and then followed by two digits, which can be repeated. How many different usernames are possible? Enter in your exact answer in the space below.
To log onto a certain website, they require the customer to create a unique username. The username must start with three letters, which cannot be repeated, and then followed by two digits, which can be repeated. How many different usernames are possible? Enter in your exact answer in the space below.
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
Problem 3ECP: A combination lock will open when you select the right choice of three numbers (from 1 to 30,...
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