Solve the problem.Jack is currently driving into a headwind (17% decrease). If his normal mileage is 50 mpg, what will his car's mileage be in the headwind? Round your answer to the nearest tenth.
A. 67 mpg
B. 7.3 mpg
C. 50 mpg
D. 41.5 mpg
Answer: D
Mathematics
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Find the area of the specified region.Inside the circle r = 6 cos ? + 3 sin ?
A. 
B. 9?
C. 
D. 
+ 9
Mathematics
Express the limit as a definite integral where P is a partition of the given interval.lim
?0
?xk, [-1, 3]
A. 
B. 
C. 
D. 
Mathematics
Solve by the elimination method:
10x + 39y = 16
15x + 39y = 18
Mathematics
Find an equation for the line with the given properties.Perpendicular to the line x = 9; containing the point (7, 2)
A. x = 7 B. x = 2 C. y = 2 D. y = 7
Mathematics