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on part only changes if you submit ~ change the answer. Assignment Scoring Your last submission is used for your score. 19. [-/1 Points] DETAILS SCALCET7 6.4.019. ASK YOUR TEACHER An aquarium 3 m long, 1 m wide, and 1 m deep is full of water. Find the work needed to pump half of the water out of the aquarium. (Use 9.8 m/sfor g and the fact that the density of water is 1000 kg/m3.) Show how to approximate the required work by a Riemann sum. (Let x be the height in meters below the top of the tank. Enter x, * as x;.) lim - WI AX 7 - 0 Express the work as an integral. dx Evaluate the integral. Submit