Solve the problem.From a boat on the lake, the angle of elevation to the top of a cliff is 34°34'. If the base of the cliff is 2375 feet from the boat, how high is the cliff (to the nearest foot)?
A. 1646 ft
B. 1639 ft
C. 1649 ft
D. 1636 ft
Answer: D
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Evaluate or simplify the given expression.cos(2 cos-1 x)
A. 1 B. 2x2 - 1 C. 2x2 + 1 D. -1
Solve the problem.The width of a rectangle is 6 kilometers less than twice its length. If its area is 108 square kilometers, find the dimensions of the rectangle.
A. width = 9 km, length = 12 km B. length = 6 km, width = 6 km C. length = 3 km, width = 36 km D. length = 9 km, width = 12 km
Solve the problem.From April through December 2015, the stock price of QRS Company had a roller coaster ride. The chart below indicates the price of the stock at the beginning of each month during that period. Find the monthly average rate of change in price between June and September.
A. $11.50 per month B. -$11.50 per month C. -$7.67 per month D. $7.67 per month
Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.