Question 6 (Essay Worth 10 points) (08.02 HC) The water level of a certain body of water is changing at a rate of W(t) = >cos |4-5 | inches per hour, where t represents hours since 12 a.m. Part A: Using correct units, explain the meaning of ], W(t) at in terms of the context of this problem. (1 point) Part B: Write the integral that represents the number of inches that the water level changes from 7 p.m. to midnight. (2 points) Part C: Use your calculator to evaluate your integral from Part B. Explain the meaning of the answer in terms of the context. (3 points) Part D: What is the average hourly number of inches that the water level changes for this lake in one day? (4 points) Choose File | No file chosen 4 Add Audio Add Video Question 7 (Essay Worth 10 points) (08.03 08.04 HC) For the regions A and B shown in the graph: Part A: Discuss the limits of integration. (3 points) Part B: Set up an integral expression that represents the total area. (4 points) Part C: Calculate the total area. (3 points) x = (y-3)2-2 26