Ecology Increasing numbers of manatees have tbeen killed by boats off a state's coast. The following graph shows the relationship between the number of boats registered in that state and the mumber of manatees kiled each year 80 60 40 * 20 Boats (100,000) The regression curve shown is given by fx)-3.55x-30.2x + 81 manatee deaths (4.5 s xS 8.5), where xis the number of boats (hundreds of thousands) registered in the state in a particular year and x) is the number of manatees killed by boats in the state that year. Compute (8). r(s) - matinee deaths per 100,000 additional boats Interpret your answer. At a level of 800,000 boats, the number of manatee deaths was increasing at a rate of per 100,000 additional boats. Manatee deaths

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