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OpenStudy (anonymous):
You want to create an ID code for the students in your school based on three characters. The first and second characters must be a letter of the alphabet, and the third must be a digit between 1 and 9 inclusive. How many such codes are there? (Use the multiplication principle.) a. 2106 different codes b. 6084 different codes c. 61 different codes d. 44 different codes
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OpenStudy (anonymous):
@dan815
OpenStudy (ivettef365):
How many letters in the alphabet ?
OpenStudy (anonymous):
27
OpenStudy (dan815):
|dw:1376511880370:dw|
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