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Mathematics, 12.03.2020 03:37 laineyherman
Based on a poll, among adults who regret getting tattoos, 22% say that they were too young when they got their tattoos. Assume that nine adults who regret getting tattoos are randomly selected. Find the indicated probability in parts a through d. A) Find the probability that none of the selected adults say that they were too young to get tattoos. B) Find the probability that exactly one of the selected adults says that he or she was too young to get tattoos. C) Find the probability that the number of selected adults saying they were too young is 0 or 1.D) It we randomly select 9 adults. Is 1 a significantly low number who day that they were too young to get tattoos?
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The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
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