Question

find the value of the expression 9P3

Answer 1

use this formula :
nPr = n!/(n-r)!

with n! = n(n-1)(n-2)(n-3)... 3.2.1

Answer 2

in this case, known the value of n=9 and r=3

Answer 3

i have to show my work how do i do tht

Answer 4

9P3 = 9!/(9-3)! = 9!/6! = ... simplify

Answer 5

is it 504

Answer 6

yup
that's right

Answer 7

thank you

Answer 8

you're welcome

Answer 9

okay simplify this expression 10C4