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Author Question: A computer password is made up of four characters. Each character can be a capital letter (A through ... (Read 60 times)

Metfan725

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Question 1

A computer password is made up of four characters. Each character can be a capital letter (A through Z), a lowercase letter (a through z) or a digit (0 through 9).

How many different such computer passwords are there?
◦ 2 × 264 + 104
◦ 62 × 4
◦ 624
◦ 462
◦ none of these

Question 2

A computer password is made up of four characters. Each character can be a capital letter (A through Z), a lowercase letter (a through z) or a digit (0 through 9).

How many passwords do not start with the digit 0?
◦ 61 × 623
◦ 614
◦ 623
◦ 624 - 1
◦ none of these


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Marked as best answer by Metfan725 on May 5, 2020

Hikerman221

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Metfan725

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Reply 2 on: May 5, 2020
YES! Correct, THANKS for helping me on my review


vickyvicksss

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Reply 3 on: Yesterday
:D TYSM

 

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