Solve.The amount of gas that a helicopter uses is directly proportional to the number of hours spent flying. The helicopter flies for 11 hours and uses 275 gallons of fuel. Find the number of gallons of fuel that the helicopter uses to fly for 10 hours.
A. 275 gallons
B. 2.5 gallons
C. 302.5 gallons
D. 250 gallons
Answer: D
Mathematics
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Solve the problem. Round to the nearest tenth.The roof of a building is in the shape of the hyperbola y2 - x2 = 50, where x and y are in meters. Determine the distance, w, between the outside walls, if the height of each wall is 11 m.
A. 13.1 m B. 16.9 m C. 8.45 m D. 71 m
Mathematics
Provide an appropriate response.The only consecutive whole numbers that are both prime numbers are 
and 
.
A. 2 and 3 B. 1 and 2 C. 0 and 1 D. 6 and 7
Mathematics
Evaluate the series, if it converges.
A. 9 B. 8 C. - 8 D. Does not converge.
Mathematics
Graph.(y + 2)2 - 9(x + 2)2 = 9
A. 
B. 
C. 
D. 
Mathematics