Suppose that in a certain state, all automobile license plates have four letters of the 26 English alphabet letters followed by three digits from 0,1,2,3,4,5,6,7,8,9. For example, WCRY-122. How many license plates are possible that begins with A and ends with 1 with NO repetition? 993600 O 77800 6955200 180835200

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Q: A password contains eight digits, such as 17466780. How many different passwords be formed?

A: Here  Password contains 8 digits

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Q: Question 1:  How many ways can they line up so there is always atleast 1 duck between any two geese.

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Q: A password contains eight digits, such as 17466780. How many different passwords can be formed?

A: no.of digits(0 to 9)=10

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Q: Parts 5, 6, 10 please

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Q: How many different four letter secret codes can be formed if the first letter must be an S or a T ?

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