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Nine-digit student identification numbers

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How many nine-digit student identification numbers can be created from letters and numbers if the first four characters must be upper case letters from A to D and the last five must be digits from 0 to 9? Repetition of letters and numbers is not allowed.Five Card Draw is a poker game in which each player is dealt an initial hand of five cards from a 52-card deck. How many unique five-card hands are possible?To log into your smart phone, a four-digit code must be entered. The code must use the digits 0 through 9 or upper case letters A through D. If digits and number can be repeated, how many four-digit codes can be created?

Reference no: EM131092957

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