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

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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