\\7 Submit Answer 3. [2/4 Points] PREVIOUS ANSWERS MY NOTES The density of oil in a circular oil slick on the surface of the ocean at a distance of r meters from the center of the slick is given by 100 Z 1+r kg/m p(r) = (a) What are the shapes of the slices? O Circles of radius r meters with centers at the center of the oil slick. Thin rings with radius r meters, centered at the center of the oil slick. 0 Thin horizontal strips at a distance of r meters from the center of the oil slick. J Why? O The oil slick is a circle. Q We always slice circles into horizontal strips. The density is approximately constant at a distance of r meters from the center of the slick. \\I (b) Find an approximation for the mass of a slice. Use Delta or A from the CalcPad. X (c) Find the exact mass of oil when the radius of the slick is 80 meters. k9 Viewing Saved Work Revert to Last Response