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D Question 5 3 pts In solving the differential work, we have to consider the axis of revolution surface O rectangular element O final position D Question 6 3 pts The circular disk method is used in solving the volume of a solid of revolution if the following are considered except: O axis of revolution is a boundary of the region O rectangular element of area is parallel to the axis of revolution. O dV = TR' dh O rectangular element of area is perpendicular to the axis of revolution. Question 7 3 pts Find the area of the region bounded by the graphs of the algebraic functions: f (x) = x2 - 20x and g (x) = 0. O 2000 3 $q. units. O 3 1090 sq. units. asq. units. Oatsq. units