Express the number in terms of i.
A. 2
i
B. -3
i
C. 3
i
D. 6i
Answer: C
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Evaluate the integral.
A. 
sin9x + 
sin 2x + C
B. 
sin 7x + 
sin 11x + C
C. 
cos 7x + 
cos 11x + C
D. 
sin 7x - 
sin 11x + C
Provide an appropriate response.How much molding is needed to go around a ceiling if there are no breaks in a room that measures 14 ft. by 20 ft?
A. 34 feet B. 280 feet C. 68 feet D. 1,156 feet
Complete the identity.
= ?
A. tan x B. cos2 x C. cot x D. sin2 x
Solve the problem.A formula for calculating the distance, d, one can see from an airplane to the horizon on a clear day is 
where x is the altitude of the plane in feet and d is given in miles. How far can one see in a plane flying at 28,000 feet? Round your answer to the nearest tenth mile, if necessary.
A. 17,080 mi B. 204.1 mi C. 1708 mi D. 184.8 mi