Question

Evaluate 9P5.

15,120
45
362,880

Answer 1

In general\[P(n,k) = \frac{n!}{(n-k)!}\]Here you have n=9, k=5

Answer 2

45?

Answer 3

It would be\[\frac{9!}{(9-5)!} = \frac{9!}{4!} = \frac{1*2*3*4*5*6*7*8*9}{1*2*3*4}\]

Answer 4

?

Answer 5

Did you find the answer?

Answer 6

?

Answer 7

no?

Answer 8

i am really confused

Answer 9

Simplify this \[\frac{1*2*3*4*5*6*7*8*9}{1*2*3*4}\] where * denotes multiplication. This can't get any simpler.

Answer 10

k
thanks i got it now

Answer 11

its the last one

Answer 12

If you do the multiplication, you will find the correct answer.