Solve the problem.The stream of water from a fire hose follows a parabolic curve and reaches a maximum height of 65 ft at a horizontal distance of 100 ft from the nozzle. Find the equation that represents the stream, with the origin at the nozzle.
A. y = - 
x2 + 
x
B. y = - 
x2 + 
x
C. y = - 
x2 + 
x
D. y = - 
x2 + 
x
Answer: D
Mathematics
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Solve the problem.When going more than 38 miles per hour, the gas mileage of a certain car fits the model 
where x is the speed of the car in miles per hour and y is the miles per gallon of gasoline. Based on this model, at what speed will the car average 15 miles per gallon? (Round to nearest whole number.)
A. 98 mph B. 48 mph C. 149 mph D. 73 mph
Mathematics
Evaluate the expression for the given replacement values.x + y, for x = 15 and y = 23
A. 83 B. 38 C. 65 D. 47
Mathematics
Subtract and, if possible, simplify.
- 
A. 
B. 
C. 
D. 
Mathematics
Plot the point in the rectangular coordinate system.(-5, 0) 
A. 
B. 
C. 
D. 
Mathematics