Question

What is the value of 7P5?

A.5040
B.2520
C.42
D.21

Answer 1

n P r = (n!)/((n-r)!)


7 P 5 = (7!)/((7-5)!)


7 P 5 = (7!)/(2!)


7 P 5 = (7*6*5*4*3*2!)/(2!)


7 P 5 = 7*6*5*4*3


7 P 5 = 2520

Answer 2

thanks not that good with that

Answer 3

yw