The design of a new airplane requires a gasoline tank of constant cross-sectional area in each wing. A scale drawing of a cross-section is shown here. The tank must hold 5000 lb of gasoline, which has a density of 42 lb/ft³. Estimate the length of the tank by Simpson’s Rule.

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yo = 1.5 ft, 4 2.0ft, = ܕ ܐܗ v1 2 3 V4 V5 y = 1.6 ft, 2 = 1.8f, 3 = 1.9ft, 5 = y = 2.1f Horizontal spacing = 1 ft