Question

Evaluate 9P4.

Answer 1

like 9 x 4 x 3 x 2 x 1?

Answer 2

That?

Answer 3

Wouldn't it just be 9*8*7*6 ?

Answer 4

oh...maybe that! I havent learned much on those.

Answer 5

If randi does mean permutation of 9 things 4 at a time, then I think the formula is
\[\huge nPr=\frac{n!}{(n-r)!}\]

Answer 6

the answer is3024