For locations between 20° and 60° north latitude a solar collector panel should be mounted so
that its angle with the horizontal is 20 greater than the local latitude.
Consequently, the solar panel mounted on the roof of
Solar Energy, Inc., in Atlanta (latitude 34°) forms a 54° angle
with the horizontal. The bottom edge of the 12-ft-long panel is
resting on the roof, and the high edge is 5 ft above the roof.
What is the total area of this rectangular collector panel?

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?