Write an iterated integral for dA over the region R bounded by y= \\X, y= 0, and x = 16 using R a. vertical cross-sections, b. horizontal cross-sections. 16 VX A. dy dx 0 0 O B. S Sox dy b. Write the correct iterated integral using horizontal cross-sections. Select the correct answer below and fill in the answer boxes to complete your choice. OA. J J dy dx OB. dx dySketch the region of integration, reverse the order of integration, and evaluate the integral. 16 4 {[y5:1]dydx Choose the correct sketch below that describes the region R from the double integral. cj-EPB. {:2 c. {:2 0 15 0 What is an equivalent double integral with the order of integration reversed? ii[y5:1]dxdy Find the volume of the solid whose base is the region in the xy-plane that is bounded by the parabola y = 4 - x and the line y = 3x, while the top of the solid is bounded by the plane z = x + 8. The volume is units 3. (Type an integer or a simplified fraction.)