Question

Answer plz and show how worked out plz so I can do what you did on the others I just need guidence

Answer 1

Another method is to use the permutation formula:

₅P₃ = (5!)/(5-3)! = 5!/2! = 120/2 = 60

Answer 2

There are 6 things
1 2 3 4 5 6
There are 3 at a time
So 6!(things) / (6-3)! (things-how many at a time)
6!/(6-3)! Or 6!/3!
! Means multiply all below that number so
6×5×4×3×2×1/ 3×2×1

30×4×3×2×1/3×2×1
You can simplify 3×2×1 since they are both on top and bottom they cancel out
30×4= 120