How many ternary ( 0,1,2) sequences of length 10 are there without any pair of consecutive digits the same?

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Q: Assume that you select digits from the set {2,3,5,7} to form a number between 20 and 700. (1) How…

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Q: How many ways are there to construct a string of 4 digits if numbers cannot be repeated? Asume each…

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

A: Solution :-

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Q: Please show full work, How many ternary ( 0,1,2) sequences of length 10 are there without any pair…

A: We see, we can start the desired ternary sequences with any of the 3 digits (0, 1 or 2).    Now, for…

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Q: How many ways are there to construct a string of 4 digits if numbers cannot be repeated? Asume each…

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