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13 Nov 2019
4. Find the centroid of the region bounded by y-In x, y = 0 and x-e. (Sec. 8.2) 5. H ow much work is required to pump the water out of the top of a half-full 10 foot long horizontal cylindrical tank at has radius 3 ft.? The weight density of the water is 62.4 %, Round to a whole number. (Sec 8.4) (2 points) 6, Find the arc length of the graph of y Vx between x 0and x -4. (Sec. 8.4) (2 points) 7. Evaluate: SlasJea-fe- 8·A single infected individual enters a community of n susceptible individuals. Let x be the number of newly infected individuals at time t. The common epidemic model assumes that the disease spreads at a rate proportional dx (Sec. 8.4) (2 points) to the product of the total number infected and the number not yet infected. So dx dt k(x+I(n-x). Solve for x as a function of t . Use the fact that x 0 when t = 0 to find C after integrating. (Sec. 8.5) (2 points)
4. Find the centroid of the region bounded by y-In x, y = 0 and x-e. (Sec. 8.2) 5. H ow much work is required to pump the water out of the top of a half-full 10 foot long horizontal cylindrical tank at has radius 3 ft.? The weight density of the water is 62.4 %, Round to a whole number. (Sec 8.4) (2 points) 6, Find the arc length of the graph of y Vx between x 0and x -4. (Sec. 8.4) (2 points) 7. Evaluate: SlasJea-fe- 8·A single infected individual enters a community of n susceptible individuals. Let x be the number of newly infected individuals at time t. The common epidemic model assumes that the disease spreads at a rate proportional dx (Sec. 8.4) (2 points) to the product of the total number infected and the number not yet infected. So dx dt k(x+I(n-x). Solve for x as a function of t . Use the fact that x 0 when t = 0 to find C after integrating. (Sec. 8.5) (2 points)
Jean KeelingLv2
18 Jul 2019