Solve the problem.Four lanes are added around the outside of the track shown below. Each lane is 1 meter wide and the lanes are immediately next to each other with no space in between. If Teresa runs once around the outside lane, and Martina runs once around the inside lane, how much further does Teresa run than Martina?Give an exact answer.
A. 3? m
B. 4? m
C. 6? m
D. (50 + 6? ) m
Answer: C
Mathematics
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A. 15x2 - 63xy + 54y2 B. 15x2 - 18xy + 54y2 C. 15x2 - 63xy - 63y2 D. 15x2 - 45xy + 54y2
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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = x2, y = 9, x = 0
A. 18?
B. 
?
C. 
?
D. 
?
Mathematics
State what the shaded area represents.
A. Position in miles from starting point B. Distance traveled in miles C. Acceleration in miles per hour per hour D. Final velocity in miles per hour
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Solve.Find the height of the cliff. Round to the nearest hundredth yard.
A. 29.38 yards B. 53.25 yards C. 14 yards D. 32.19 yards
Mathematics