yarielperez248 yarielperez248
  • 06-02-2024
  • Mathematics
contestada

What are the possible combinations of a three-digit number of 0 to 9 without repeating all three numbers?
A) 720
B) 810
C) 648
D) 900

Respuesta :

konrad509
konrad509 konrad509
  • 06-02-2024

[tex]9\cdot9\cdot8=648[/tex]

  • first digit any of possible 9 dgits (can't be zero)
  • second digit any of the remaining 9 digits (now including zero)
  • third digit any of the remaining 8 digits
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