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17.27. How many Social Security numbers (see Exercise 8.12) have their nine digits in strictly increasing order

Sagot :

Cricetusidn

Answer:

"10 possibilities" is the appropriate response.

Step-by-step explanation:

The numbers will be:

⇒ [tex]123 \ 456 \ 789[/tex]

Now anyway we commence with right and afterwards remove nine from eight and seeing as maintain the sequence growing.

then,

  • [tex]012345678[/tex]
  • [tex]012345679[/tex]
  • [tex]012345689[/tex]
  • [tex]012345789[/tex]
  • [tex]012346789[/tex]
  • [tex]012356789[/tex]
  • [tex]012456789[/tex]
  • [tex]013456789[/tex]
  • [tex]023456789[/tex]

Thus, the above is the correct answer.

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