debbys4995 debbys4995
  • 25-12-2017
  • Mathematics
contestada

How many different 7​-letter words can be made
a. if the first letter must be d, x, or t and no letter may be​ repeated?

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fenixgreengr
fenixgreengr fenixgreengr
  • 30-12-2017
>>>>>>>3*25*24*23*..*20
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