Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
- 3 ? x ? 3, about the x-axis (dimensions are in feet). If a cubic foot holds 7.481 gallons and the helicopter gets 3 miles to the gallon, how many additional miles will the helicopter be able to fly once the tank is installed (to the nearest mile)?
A. 56
B. 113
C. 75
D. 226
Answer: D
Mathematics
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Solve the problem.Find the average distance from a point 
in the annular region 
to the origin.
A. 
B. 
C. 
D. 
Mathematics
Calculate the Huntington-Hill number.City A: population 4800, 12 representatives
A. 147,692.408 B. 147,702.308 C. 147,693.308 D. 147,692.308
Mathematics
Identify whether the equation, when graphed, will be a parabola, circle, ellipse, or hyperbola.x2 + y2 = 9
A. hyperbola B. circle C. parabola D. ellipse
Mathematics
List all numbers from the given set that are members of the given Real Number subset.
Irrational numbers
A. 
, 
, 0.26
B. 
C. 
, 0.
D. 
, 
, 0.
Mathematics