A password for a secirity system at a home consists of a combination of 8 entries. Each entry can be either a letter (only upper case letters are in the keypad), or a 1-digit number. How many passwords are possible if there are no restrictions? How many passwords are possible if the no entry can be repeated?

Q: A combination lock uses 3 numbers, each of which can be 0 to 23. If there are no restrictions on the…

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Q: The college decided that a more secure password system is needed. New passwords must have 3…

A: Here, the password consisting of 3 digits followed by 3 letters. There are 26 possible alphabetical…

Q: supermarket wants to send codes for $0.25 off a bag of chips to its rewards program members. Each…

A: Given, a supermarket wants to send codes for $0.25 off abag at chips to its rewards program…

Q: In the past, a college required students to use a 4 digit PIN (Personal Identification Number) as…

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Q: by three digits. The letters A, B, C, and D and the digits 6 and 9 will not be used. So, there are…

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Q: A combination lock that consists of the digits 0 through 9 requires a sequence of five numbers to…

A: Given Information :  A combination lock that consists of the digits 0 through 9 requires a sequence…

Q: For a class activity, a teacher put students into teams of 5. The teams were made up of 2 students…

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Q: How many options do you have for a 10-digit password of 26 letters?

A: to find number of option for a 10-digit password of 26 letters

Q: You are selecting a 7 character password using 4 letters and 3 numbers ( from 0-9 ), without…

A: The following solution is given below :

Q: A supermarket send codes for $0.25 off a bag of chips to its rewards members. Each coupon code will…

A: Number of letters allowed = 24 Number of digits allowed = 7 Each coupon code will have one digit…

Q: A child psychologist prepares four-letter words to be used in a memory test. How many words can she…

A: To find the number of four-letter words that can be constructed using the given letters without…

Q: John owns a small Internet company and offers his clients three different formats for the name part…

A: Given that , Format for Name part of email address = 3 Format for Domain part of email address = 7…

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: How many account numbers are possible if no digit appears more than once?

A: here given, account numbers for an internet service provider consist of alpha-numeric characters.…

Q: If Joe only has room for 2 of his 6 flags on his flagpole, how many different ways can they be…

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Q: Question 4 Tanner has a collection of 9 shirts, 8 pairs of pants, and 10 pairs of shoes. How many…

A: given data, there are 9- shirts8- pair of pants10- pair of shoesselecting 1 shirt, 1 pair of pants ,…

Q: In the following addition problem, the numbers have been encrypted by letters. Each letter should…

A: (1) Observations:          (a) Since 'KID' is a three-digit number, and 'KID' + 'KID' is a four…

Q: what is the name of each of them?

A: We will compare with general equation to find type ( name ) of surface represented by given equation…

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: Los Angeles Dodgers. From the official website of the 2013 Los Angeles Dodgers major league baseball…

A: Given info:Five active players available on roster to play outfield.

Q: Standard automobile license plates in a state display 3 digits (from 0-9), followed by 4 letters…

A: In the question it is asked to calculate the number of plates possible when the plate consists of 3…

Q: Customer account "numbers" for a certain company consists of 2 letters followed by 3 single-digit…

A: Given Customer account "numbers" for a certain company consists of 2 letters followed by 3…

Q: That is a lot of passwords! How many passwords would the website have if users were allowed to reuse…

A: Given: There are 26 alphabets and 10 digits. The length of the password is 8 where six spaces…

Q: Customer account "numbers" for a certain company consists of 2 letters followed by 4 single-digit…

A: Customer account "numbers" for a certain company consists of 2 letters followed by 4 single-digit…