Solve the problem.A tower is 618 meters high, and it has an observation deck at the 343-meter level. How far from the top of the tower must a 618-meter-high helicopter be in order that the angle subtended at the helicopter by the part of the tower above the deck equals the angle subtended by the part of the tower below the deck?
A. 829 m
B. 18 m
C. 1034 m
D. 91 m
Answer: A
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Evaluate the integral by using a substitution prior to integration by parts.
A. 
[cos (ln x) + sin (ln x)] + C
B. x[cos (ln x) + sin (ln x)] + C
C. 
[cos (ln x) - sin (ln x)] + C
D. x cos (ln x) + sin (ln x)+ C
Write the words used to read the number.48,706
A. forty thousand, seven hundred six B. forty thousand, eight hundred seventy six C. forty-eight thousand, seven hundred sixty D. forty-eight thousand, seven hundred six
Solve the problem.The foundation for a cylindrical storage shed is a cylinder 29 m in diameter and 4 m high. How many cubic m of concrete are needed to build the foundation? Use 3.14 for ?. Round the answer to the nearest tenth if necessary.
A. 10,563.0 m3 B. 5281.5 m3 C. 728.5 m3 D. 2640.7 m3
Determine whether a function exists with set A as the input and set B as the output.
A. Yes B. No