Question

Find the value of each expression. Show your work.
9^P^3

Answer 1

`_n{P}_r = (n!)/((n - r)!)`

`_9P_3 = (9!)/((9 - 3)!)`

`_9P_3 = (9!)/(6!)`

`_9P_3 = (9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1)/(6 * 5 * 4 * 3 * 2* 1)`

`_9P_3 = 9 * 8 * 7`

`_9P_3 = 72 * 7`

`_9P_3 = 504`