Find the perimeter of each figure. For Exercise 29, find the area also.
A. area: 
ft2; perimeter: 1
ft
B. area: 
ft2; perimeter: 1
ft
C. area: 
in2; perimeter: 1
in
D. area: 
ft2; perimeter: 
ft
Answer: B
Mathematics
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Solve the problem.Evaluate 
Rwhere R is the interior of the ellipsoid 
. Hint: Let 
and then convert to spherical coordinates.
A. 75?2 B. 100? C. 100?2 D. 75?
Mathematics
Solve the problem.Find the center of mass of the hemisphere 
if the density is proportional to the distance from the center.
A. 
B. 
C. 
D. 
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Solve the problem.State whether the vectors v = i + 
j and w = i - 4j are orthogonal.
A. orthogonal B. not orthogonal
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A. 7
B. 6
C. 7
D. 8
Mathematics