Question 11 1 pts Find the minimum amount of tin sheet that can be made into a closed cylinder having a volume of 108 cu. inches in square inches. O 129.50 O 127.50 O 123.50 O 125.50 Question 12 1 pts The area enclosed by the curves y =cosx, y=1+sin2x and x =5n/2. O 3pi/2 O 5pi/2 O 2 + 3pi/2 O 2 + 5pi/2Question 13 1 pts Find the area bounded by the y-axis and x = 4 - y2/3. O 12.8 O 25.6 O 28.1 O 56.2 Question 14 1 pts The area bounded by the curve y? = 12x and the line x = 3 is revolved about the line x = 3. What is the volume generated? O 179 O 186 O 181 O 184Question 15 1 pts Find the volume generated by rotating the region bounded by y = x, x = 1, and y2 = 4x, about the x-axis. O pi O 3pi O 9pi O 2pi Question 16 1 pts Find the length of the arc of x2 + y? = 64 from x = -1 to x = -3, in the second quadrant. O 2.75 O 2.24 O 2.61 O 2.07Question 17 1 pts How far from the y-axis is the centroid of the area bounded by the curve y = x', the line x = 2, and the y-axis. O 1.6 O 1.2 O 1.4 O 1.8 Question 18 1 pts The area in the first quadrant, bounded by the curve y = 2x 12, the y-axis and the line y - 6 =0 is revolved about the line y = 6. Find the centroid of the solid formed. O (2.0,6) O (1.6,6) O (2.2,6) O (1.8,6)