Solve the problem.The maximum distance d in kilometers that you can see from a height h in meters is given by the formula 
How high above the ground must you be to see 55 kilometers. (Round to the nearest tenth of a meter.)
A. 246.9 m
B. 864.3 m
C. 15.7 m
D. 26 m
Answer: A
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Set up an integral for the length of the curve.x = sin 3y, - ? ? y ? 0
A. 
B. 
C. 
D. 
Simplify the expression.(x4)3
A. 3x4 B. 3x12 C. x7 D. x12
Determine whether the given quadratic function has a minimum value or maximum value. Then find the coordinates of the minimum or maximum point.f(x) = 2x2 - 4x
A. minimum; 
B. maximum; 
C. maximum; 
D. minimum; 
Solve the problem.Ozone levels inside a building should not exceed 50 parts per billion (ppb). In a scientific study, an air filter was able to remove 37% of the ozone entering a building. Approximate the range of ozone concentrations in outside air that this filter will reduce to an acceptable level.
A. 63 ppb ? x ? 79 ppb B. x ? 95 ppb C. x ? 79 ppb D. x ? 79 ppb