Solve the problem.From a distance of 45 feet from the base of a building, the angle of elevation to the top of the building is 67°. Estimate the height of the building to the nearest foot.
A. 18 ft
B. 41 ft
C. 106 ft
D. 19 ft
Answer: C
Mathematics
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and 
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A. (2, ?)
B. 
C. 
D. (-2, ?)
Mathematics
Write the rational expression in simplest form.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Use the appropriate sum or difference identity to write the given expression as a function of x alone.sin 
A. sin x B. -cos x C. -sin x D. cos x
Mathematics
Evaluate the integral.
A. 5 B. - 2 C. 2 D. 1
Mathematics