According to the data presented below and analysing it through a cost-benefit relation, which of the following medicine would be better to choose? data: medicine 1 - efficiency 85% - nephrotoxicity 5% in pacients, with an additional cost of r$ 2.500,00. - treatment total cost r$200,00 medicine 2 - efficiency 95% - no side effects - treatment total cost r$ 700,00 medicine 3 - efficiency 99,9% - no side effects - treatment total cost r$ 2.500,00 a) medicine 1, with a r$600,00 cost. b) medicine, with a r$700,00 cost. c) medicine 2, with a r$600,00 cost. d) medicine 2, with a r$700,00 cost. e) medicine 2, with a r$750,00 cost. the answer is b. i need to know why, .

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. complete parts (a) and (b) below. business degrees nonbusiness degrees total male 189131 634650 823781 female 169539 885329 1054868 total 358670 1519979 1878649 (a) find the probability that a randomly selected student is male, given that the student received a business degree. the probability that a randomly selected student is male, given that the student received a business degree, is nothing. (round to three decimal places as needed.) (b) find the probability that a randomly selected student received a business degree, given that the student is female. the probability that a randomly selected student received a business degree, given that the student is female, is nothing. (round to three decimal places as needed.)

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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)

If sin(x) = 0 and cos(x) = 1, what is tan(x)?