(x + 9)(x + 12) = 0
Expanding the brackets, we get:
Answer:
Step-by-step explanation:
P(a or b) = P(a) + P(b) - P(a and b)
0.88 = 0.70 + 0.60 - P(a and b)
P(a and b) = 1.30 - 0.88 = 0.42.
So the events a and b are not mutually exclusive.
A. x = -6
6-x-x = 18
6-2x =18
-2x = 12
x = -6
Answer:
C)17
Step-by-step explanation:
5+y+8
let y=4
5+4+8
9+8
17