(a) Use the Midpoint Rule for double integrals with four squares to estimate the surface area of the portion of the paraboloid z = 5x+5y2 that lies above the square [0, 1] x [0, 1]. (Round your answer to four decimal places.) (b) Use a computer algebra system to approximate the surface area in part (a) to four decimal places. Compare with the answer to part (a).

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