How many such passwords are possible that end in the letter Z?

Q: In order to create a PIN to access your tablet, you have to choose six digits (where your choices…

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Q: Determine the number of different words possible by rearranging the letters of ERRTDADX

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Q: A website requires you to choose a username that contains 4 letters followed by 3 digits. How many…

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Q: To keep computer files secure, you create a six character password. Characters can be letters or…

A: There are total 26 letters (A-Z) And 10 digits (0-9) So total (26+10)=36 choices for each character.…

Q: Outside a home, there is an 8-key keypad numbered 1 through 8. The correct five-digit code will open…

A: There are totally 8-key keypad numbers. The correct five-digit code will open the garage door. The…

Q: Outside a home, there is a 4-key keypad with letters A, B, C, and D that can be used to open the…

A: Given Outside a home , there is a Keypads with letter= A,B,C,D Number of codes=4

Q: A website instructs users to create a password using 4​ alphanumeric characters (letters or digits).…

A: We have given that a website instructs users to create a password using 4​ alphanumeric characters…

Q: License plates consist of 4 digits followed by 4 upper-case letters. Plates that start with 00 are…

A: This question belongs to permutation and combination's.for detailed solution refer the attached…

Q: Outside a home, there is a 5-key keypad with letters A, B, C, D and, E that can be used to open the…

A: 5 key keypad with letter A,B,C,D,E.the key can be used to open the garage if the correct five-letter…

Q: A state’s license plate has 7 characters. Each character can be a capital letter (A−Z), or anon-zero…

A: According to the given information, it is required to find the number of license plates that starts…

Q: password contains 2 letters and 2 digits.  How many passwords are possible if repetitions are NOT…

A: The number of letters is 2 and the number of words is 2.

Q: A license plate is to have the following form: three letters followed by three numbers. An example…

A: There are 26 letters (A-Z) and 10 numbers (0-9) We can pick each letter in 26 ways and we can pick…

Q: In a certain state, license plates each consist of 2 letters followed by 3 digits. How many…

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Q: the name of a 4-bit word.

A: To find the name of a 4-bit word.

Q: A corporate password consists of four digits, followed by three lower-case letters of the alphabet.…

A: The password is 4 digits long followed by three lower-case letters.

Q: How many different standard plates are possible in this system?

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Q: Use the numbers 5 and 4 to illustrate the commutative property of multiplication.

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