aaliyahlash06
aaliyahlash06 aaliyahlash06
  • 25-04-2020
  • Mathematics
contestada


Find the number of permutations of the first 9 letters of the alphabet taking 5 letters
at a time.

Respuesta :

DeanR
DeanR DeanR
  • 26-04-2020

We have 9 choices for the first letter, 8 for the second, 7 for the third, 6 for the fourth and 5 for the fifth,

n = 9×8×7×6×5 = 15,120

Answer: 15,120

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