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17. [-/1 Points] DETAILS LARCALCET7 15.6.013. 0/100 Submissions Used MY NOTES ASK YOUR TEACHER Find the mass of the surface lamina S of density p. S: 2x + 3y + 6z = 12, first octant, p(x, y, z) = x2 + yz Need Help? Read It Watch It 18. [-/1 Points] DETAILS LARCALCET7 15.6.017. 0/100 Submissions Used MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Evaluate 15 / R(x , y , 2 ) as . f ( x, y) = 3y - x S: r(u, v) = cos(u)i + sin(u)j + vk Osus_, OSVS1 Need Help? Read It