Solve the problem.The shape and density of a thin shell are indicated below. Find the moment of inertia about the z-axis.Shell: upper hemisphere of x2 + y2 + z2 = 16 cut by the plane z = 0Density: ? = 3
A. Iz = 96?
B. Iz = 384?
C. Iz = 1024?
D. Iz = 48?
Answer: C
Mathematics
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Find the limit, if it exists.
A. 3x2 + 3xh + h2 B. Does not exist C. 0 D. 3x2
Mathematics
For the function f whose graph is given, determine the limit.Find
f(x).
A. 1 B. -1 C. does not exist D. 0
Mathematics
Solve the problem. Express your answer in simplest form.Lorrie bought 
lb of basil and 
lb of oregano. How many pounds of herbs did she buy in total?
A. 
lb
B. 
lb
C. 
lb
D. 
lb
Mathematics
Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 20 watches B. 31 watches C. 63 watches D. 39 watches
Mathematics