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OpenStudy (anonymous):
A city has a population of 5000 people. One person returning from vacation is infected with a virus that spreads at a rate modeled by the equation y = 5000/1-4999e^ - .8t where t represents time in days a. how many people are infected after 5 days b. a quarantine is put in place when 40 percent of the population is infected. How many days did it take for the quarantine to go into effect?
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