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Mathematics 10 Online
OpenStudy (anonymous):

How many different cards could be created using the numbers 0-9 when each card needs a 9-digit number and the digits can only be used once per card? A. 10 B. 604,800 C. 3,628,800 D. 1,814,400

OpenStudy (anonymous):

c would be 3,628,800 different combinations given the criteria you describe also for a 9 digit # you would need to multiply 10*9*8*7*6*5*4*3*2

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