Solve the problem.A car traveled 318 miles on a trip. During 87 miles of the trip, the car traveled through the city and had gas mileage that was 4 fewer miles per gallon than the gas mileage on the highway. If the total amount of gasoline used for the trip was 10 gallons, find the gas mileage of the car on the highway.
A. 33 miles per gallon
B. 37 miles per gallon
C. 25 miles per gallon
D. 29 miles per gallon
Answer: A
Mathematics
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Use integration by parts to establish a reduction formula for the integral.
A. 
= - 
xn-1 e- x2 + 
B. 
= n xn-1 e- x2 + 2n 
C. 
= - 2xn-1 e- x2 - 2(n - 1) 
D. 
= - 
xn e- x2 + 
Mathematics
Convert the polar equation to a rectangular equation.r = 
A. 3y2 - x2 + 16 = 0 B. 3x2 - y2 + 16 = 0 C. 3y2 - x2 -16y + 16 = 0 D. 3x2 - y2 -16x + 16 = 0
Mathematics
Divide.(-16x3 - 32x2 - 23x - 6) ÷ (-4x - 3)
A. x2 + 5x + 2 B. x2 - 5x - 2 C. 4x2 + 2 D. 4x2 + 5x + 2
Mathematics
Evaluate.
A. -7
B. 7
C. 5
D. -5
Mathematics