Solve the problem.A contractor needs to know the height of a building to estimate the cost of a job. From a point 88 feet away from the base of the building, the angle of elevation to the top of the building is found to be 
Find the height of the building. Round your answer to the hundredths place.
A. 88.33 ft
B. 89.66 ft
C. 85.43ft
D. 83.90 ft
Answer: C
Mathematics
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Use the limit comparison test to determine if the series converges or diverges.
A. Diverges B. Converges
Mathematics
Multiply or divide as indicated.
? 
A. -5 B. 5 C. -5i D. 5i
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Find the area of a sector of a circle having radius r and central angle ?. If necessary, express the answer to the nearest tenth.r = 15.0 m, ? = 20°
A. 0.5 m2 B. 78.5 m2 C. 39.3 m2 D. 2.6 m2
Mathematics
Solve.x2 = 81
A. 40.5 B. -9, 9 C. -10, 10 D. 9
Mathematics