Suppose that the expected number of accidents per week at an industrial plant is 5. suppose also that the numbers of workers injured in each accident are independent random variables with a common mean of 2.5. if the number of workers injured in each accident is independent of the number of accidents that occur, compute the expected number of workers injured in a week

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

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)