Step-by-step explanation:
When you add P(A) and P(B), the overlap P(A and B) is counted twice. So you must subtract it to get the probability P(A or B).
If A and B are disjoint, then P(A and B) = 0, so it isn't necessary to subtract.
17.
x = -2 is not a solution of -1 < x < 5 because -2 < -1 (-1 < -2 < 5 FALSE).
18.
m = 5 is a solution of 5 ≤ m because 5 ≤ 5 ( 5 ≤ m → m ≥ 5 greater than 5 or equal 5, 5 is equal 5)
19.
k = 10 is not solution of 2k - 3 < 1 because:
put the value of k to the inequality:
2(10) - 3 < 1
20 - 3 < 1
17 < 1 FALSE
Answer:
130
I don' know my explanation.
Thanks dude.
Can I get brainliest?
13.
14.
15.
60%
