please double check this and let me know if I did something wrong
P(5,2) = n! /(n-r)!
n = 5, r = 2:
= (5 x 4 x 3 x 2 x 1 ) / 3 x 2 x 1
Cancel out common factors:
= 5 x 4 = 20
The answer is 20.
Answer:
x=1
Step-by-step explanation:
3x=8x-5
-8x -8x
-5x=-5
divide by -5 on each side
