SOLUTION: The telephone extentions at a company uses 4 digits. How many extensions are possible is there are no restrictions?

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Question 265175: The telephone extentions at a company uses 4 digits. How many extensions are possible is there are no restrictions?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The telephone extentions at a company uses 4 digits. How many extensions are possible if there are no restrictions?
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Ans: 10^4 = 10,000
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Cheers,
Stan H.