Question

Pls help, i don’t understand this at alll !!!!!

Answer 1

A. 720

B. 120

Explanation:

To do this you need to do permutation with your calculator

A.

KINDLY has 6 letters

an easy way to do this is by

6 x 5 x 4 x 3 x 2 x 1 = 720

or 6! = 720

B.

6 nPr 3 = 120

or

n! 6! 6 x 5 x 4 x 3 x 2 x 1 720

P(n, r) = -------- = ---------- = ------------------------------- = ----------- = 120

(n - r)! (6 - 3)! 3 x 2 x 1 6

I hope this helps!