Suppose that a password is exactly six characters and each character is 1 of the 26 lowercase letters (a-z) or 10 integers (0-9). How many passwords contain exactly 1 integer?

Q: Evaluate if x=4,8,3,-2 ∑x ∑x+1 ∑(x+1) 3∑x - 4

A: Given that  if x=4,8,3,-2

Q: How many integers from 1 through 1000 are multiples of 7 or multiples of 4?

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Q: How many zeros does 25! end with?

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A:

Q: The total curb weight of a truck, a car A, and a car B is 11,250 lb. The weight of car A is 15 lb…

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Q: The average length of a password is 8 characters. If you are allowed to use the 26 letters in the…

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Q: access code for the entrance of a faculty office consists of five digits. Each digit can be 0…

A:

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Q: If a is an even number, then a³ is an even number.

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Q: A 16-bit string is a sequence of 16 symbols, each symbol a 0 or a 1. How many 16-bit strings are…

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Q: a) How many plates are possible when letters and numbers can repeat? Set up the expression that can…

A:

Q: How many strings of three decimal digits (each digit can be 0-9) do not contain the same digit three…

A: Solution :-

Q: A computer password must be eight characters long. How many passwords are possible if only the 26…

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

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