This one should have come before the other one. We apply the cone formula


Answer:
3 because 3 x 2 + 3 x 8 = 30 and 3(2+8)=30
Answer:
0.85
Step-by-step explanation:
Given two events A and B, the probability that either A or B occurs is given by:

where
the probability that A occurs
is the probability that B occurs
is the probability that both A and B occur at the same time
In this problem, we know the following facts:
is the probability that the car requires an oil change
is the probability that the car requires a brake repair
is the probability that the car requires both an oil change and brake repair
Therefore, the probability that either o (car requiring oil change) or b (car requiring brake repait) occur is:

Answer:
<2 and <8
Step-by-step explanation: