Question

How many numbers between 0 and 57343 contain at least one letter when written in base 16? Show work as if not using a calculator or computer?

Answer #1

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how
many 3-digit numbers are there that contain at least one
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DISCRETE MATH.
If passwords contain letters(lower and upper case), numbers
(0-9) and can use these special characters(!,@,#,$,%)
how many 8 character long passwords are possible?
One character has to be an uppercase and another one has to be a
special character.

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