10. Secret Code Word How many 4-letter code words can be made using the letters in the word pencil if repetitions are permitted? If repetitions are not permitted? 11. Passwords Given the characters A, B, C, H, I, T, U, V, 1, 2, 3, and 4, how many seven-character passwords can be made? (No repeats are allowed.) How many if you have to use all four numbers as the first four characters in the password? 12. Automobile Trips There are 2 major roads from city X to city Y and 4 major roads from city Y to city Z. How many different trips can be made from city X to city Z, passing through city Y? 13. Evaluate each expression. e. 6Р4 i. 9P2 а. 11! f. 12PS b. 9! j. 11P3 g. 7P7 h. 4Po с. 0! d. 1! 14. Evaluate each expression. е. 9Ро а. 6! f. 11P4 b. 11! g. sPo h. 10P2 С. 2! d. 9! Car Strines How many different 4-colorco mont

Q: Standard automobile license plates in a country display 2 numbers, followed by 3 letters, followed…

A: we know thatno.of letters (A to Z)=26no.of digits(0 to 1)=10

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Q: 21. Bank checks. Determine the check digits for the following bank codes: 0 25 7 1 1 0 8 .

A: The given code is: 0 2 5 7 1 1 0 8 _

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Q: A 4-Letter code to be formed using all the letters of the word HISTORY How many of these different…

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A: Answer is 535886256970012000.   Detailed solution is attached below.

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Q: 1. In how many ways can four consonants be chosen from the six letters in the word DRAGON?

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Q: How many different passwords are possible?

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