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.
Answer:
The answer is 144,5
Step-by-step explanation:
144,5/170×100 =85%
Answer:
(1/3)(n - 4) = 1/6
Step-by-step explanation:
Let the number be n. Then the given phrase can be written symbolically as (1/3)(n - 4) = 1/6. This is the second answer choice.
Answer:
Correct Option is d 
Step-by-step explanation:
For completing the square our equation should be in the form of 
In the given equation we have:

Correct Option is d 