Part A Mark the focus of the parabola you are going to create at F-5,2). Draw a vertical line that is 8 units to the right of the focus. This line will be the
directrix of your parabola. What is the equation of the line?

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?