What is the missing step in the given proof?
a.
∠pqc and ∠acp are supplementary by the linear pair theorem.
b.
for parallel lines cut by a transversal, corresponding angles are congruent, so ∠acb ≅ ∠pcq.
c.
∠ocp ≅ ∠bcd by the vertical angles theorem.
d.
for parallel lines cut by a transversal, corresponding angles are congruent, so ∠ocp ≅ ∠abc.
e.
for parallel lines cut by a transversal, corresponding angles are congruent, so ∠oca ≅ ∠cbd.

An oil exploration company currently has two active projects, one in asia and the other in europe. let a be the event that the asian project is successful and b be the event that the european project is successful. suppose that a and b are independent events with p(a) = 0.2 and p(b) = 0.8. (a) if the asian project is not successful, what is the probability that the european project is also not successful? (b) what is the probability that at least one of the two projects will be successful? (c) given that at least one of the two projects is successful, what is the probability that only the asian project is successful? (round your answer to three decimal places.)