Question

Abby is registering at a Web site. She must select a password containing 6 numerals to be able to use the site. How many passwords are allowed if no digit may be used more than once?

Answer 1

10P6 = 10!/(10-6)! = 10!/4! = 10*9*8*7*6*5

Answer 2

10*9*8*7*6*5 = 151,200

Answer 3

so 151200

Answer 4

yes

Answer 5

oh ok thanks