Answer:
6.71
Step-by-step explanation:
c=
(3-9)^2+(-1+4)^2
c=√36+9
c=6.71
I believe it's 1.8, but correct me if I'm wrong.
The first digit of the password can be any of the ten digits - 10 possibilities.
A digit cannot be repeated, so the second digit can be any digit except the one you chose for the first digit - 9 possibilities.
The third digit can be any digit except the digits you chose for the first and second digit - 8 possibilities.
Using the rule of product:

There are 720 passwords.
Answer: look at the ss :))
Step-by-step explanation: