Question

How many combinations with repetition are allowed if n = 8 and r = 4?

Answer 1

Answer:

When the order of items matters, that’s called a Permutation. Since we are allowed to repeat items, we use the following formula:

Number of possible Permutations

= n^r

= 8^4

= 4096

Answer 2

Answer:

Im pretty sure its 1680

Step-by-step explanation:

because 8x7x6x5x4x3x2x1=40320

and 4x3x2x1=24

so 40320 divided by24=1680