Evaluate using integration by parts.
? 7x cos (x)dx 14
7x sin x + 7cos x +C
Mathematics
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Solve the problem.Find the average distance from a point 
in the region bounded by 
to the origin.
A. 
B. 
C. 
D. 
Mathematics
Find the median for the group of data items.6, 13, 25, 24, 42, 48
A. 24.5 B. 22.5 C. 24 D. 25
Mathematics
Write the quotient in the form a + bi.
A. - 
+ 
i
B. 
+ 
i
C. - 
+ 
i
D. 
+ 
i
Mathematics
Solve the problem.A rectangular board is 4 units by 12 units. How far from the long side of the board will the foci be located to determine the largest elliptical tabletop?
A. 4.0 units B. 5.7 units C. 2.0 units D. 0.3 units
Mathematics