Mathematics, 20.12.2021 20:00 spotty1023
How many different 4-letter words can be made
a. if the first letter must be K, X, or P and no letter may be repeated?
b. if repeats are allowed (but the first letter is K, X, or P)?
a. If all the letters are different there are
4-letter words.
b. If the letters may be the same there are
4-letter words
Answers: 2
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How many different 4-letter words can be made
a. if the first letter must be K, X, or P and no let...
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