Question

Can someone teach me how to do this? To register for online banking services at a local credit union, you need to select a four-digit
personal identification number, or pin code. The digits cannot be repeated. How many ways
are there to arrange four digits out of the numerals 0 through 9 to create a code? Use the permutation formula

Answer 1

What is flvs?

Answer 2

nvm

Answer 3

Can you teach me the steps though so i can do other problems on my own?

Answer 4

just use the permutation formula...

Answer 5

Yeah i dont know how to use that

Answer 6

\[\frac{n!}{(n-k)!}\]

Answer 7

n is the total amount of digits you can choose from
k is the parameter, in this case only 4

Answer 8

so 4x3x2x1 = 24?

Answer 9

nope

n=?

Answer 10

How do you find out the n?

Answer 11

how many digits exists from 0 -9 ...

Answer 12

9

Answer 13

count again

Answer 14

I don't understand? ..

Answer 15

0 1 2 3 4 5 6 7 8 9

count again

Answer 16

ohh 18

Answer 17

...

Answer 18

lol im sorry im not that smart