Find the indicated sum.
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.What points of the surface 
are closest to the origin?
A. (2, -4, ±2) B. (-2, -4, ±2) C. (2, 4, ±2) D. (-2, 4, ±2)
Solve.A plane flies 460 miles with the wind and 300 miles against the wind in the same length of time. If the speed of the wind is 24 mph, what is the speed of the plane in still air?
A. 139 mph B. 104 mph C. 119 mph D. 114 mph
Solve the application and answer with a complete sentence.A painter used 7
gallons of paint to paint the front of a house and another 7
gallons to paint the back. How much paint did he use in total?
A. He used 15
gallons of paint.
B. He used 14
gallons of paint.
C. He used 14
gallons of paint.
D. He used 13
gallons of paint.
Use an identity to write the expression as a single trigonometric function or as a single number.
A. cos 33° B. cot 33° C. tan 33° D. sin 33°