Question

Need help with a math question PLEASE HELP

Answer 1

If you're allowed to repeat letters, then it's 12x12x12x12x12. If not, then it's 12x11x10x9x8.

Answer 2

For this case we have the following formula:

$nP_ {r} = \frac {n!} {(n-r)!}$

Where:

P: It is the number of permutations

n: It is the number of objects

r: It is the number of selected objects

According to the data we have to:

$n = 12\\r = 5$

Substituting:

$12P_ {5} = \frac {12!} {(12-5)!} = \frac {12 * 11 * 10 * 9 * 8 * 7!} {7!} = 12 * 11 * 10 * 9 * 8 = 95,040$

Finally, the number of permutations is 95,040

ANswer:

95,040