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OpenStudy (anonymous):
Question Part Points Submissions Used 1 –/0.47 0/100 Total –/0.47 A typical Social Security number is 555-47-5593. How many Social Security numbers are possible if the first two digits cannot be 0?
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OpenStudy (anonymous):
Not sure where to start
OpenStudy (anonymous):
This is a question on Combinations, how many possibilities are there for each digit?
OpenStudy (anonymous):
999999999-2? Maybe lol idk
OpenStudy (anonymous):
hint numbers can go from 0-9 but there is something special about the first two digits...
OpenStudy (anonymous):
last cant be 00 x0 0x so it be 999999999-3
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OpenStudy (anonymous):
not quite
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