Solve the problem.At speeds greater than 38 miles per hour, the gas mileage of a certain car can be modeled by the equation
where x is the speed of the car in miles per hour and y is the gas mileage in miles per gallon. Based on this model, at what speed will the car average 15 miles per gallon? Round to the nearest whole number.
A. 98 mph
B. 48 mph
C. 73 mph
D. 149 mph
Answer: C
Mathematics
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Divide and simplify. 
A. 6x5
B. 6
C. 6x5
D. 6x10
Mathematics
Solve the equation.|4s - 2| = |s + 4|
A. ?
B. {2, - 
}
C. 
D. {- 2, 
}
Mathematics
Solve the problem.The velocity of water in ft/s at the point of discharge is given by 
where P is the pressure in 
of the water at the point of discharge. Find the rate of change of the velocity with respect to pressure if the pressure is 
A. 21.06 ft/s per lb/in.2 B. 4.21 ft/s per lb/in.2 C. 0.6660 ft/s per lb/in.2 D. 2.1061 ft/s per lb/in.2
Mathematics
Graph the hyperbola, the asymptotes, and the vertices of the fundamental rectangle.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics