Mathematics, 10.03.2021 05:20 Naysa150724

A combination lock uses the letters a through K on the first dial and the digits zero through nine on the second and third dial. A) How many possible combinations are there for this lock if repetition is allowed? B) how many combinations if you do not use the same digit twice?

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A combination lock uses the letters a through K on the first dial and the digits zero through nine o...