Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: cylinder x2 + z2 = 81 bounded by y = 0 and y = 6Density: constant
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Graph the region determined by the inequality in the context of the application.In order to make a profit an automobile dealer must sell at least 200 vehicles a month. The dealer plans to sell x units of one model and y units of another model. This situation can be modeled by the inequality 
A. 
B. 
C. 
D. 
Mathematics
Find the nth, or general, term.m, 
, 
, . . .
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If $4000 earned simple interest of $149.33 in 7 months, what was the simple interest rate?
A. 5.4% B. 8.4% C. 6.4% D. 7.4%
Mathematics
Solve.
? 0
A. [-8, 7], or 
B. [-7, 8], or 
C. (-8, 7], or 
D. (-7, 8], or 
Mathematics