14. [/1 Points] TANAPMATH7 9.4.056. ASK YOUR TEACHER PRACTICE ANOTHER Effect of Stopping on Average Speed According to data from a General Motors study, the average speed of your trip A (in miles per hour) is related to the number of stops per mile you make on the trip x by the equation 25.5 1- 0.45 ' X Compute ZA for x = 0.29. (Round your answer to two decimal places.) X mph per stop per mile Compute % forx = 4. (Round your answer to two decimal places.) mph per stop per mile How is the rate of change with respect to X of the average speed of your trip affected by the number of stops per mile? When the derivative ofA at a value ofx is negative it indicates thatA will ---Select--- if the input increases by a small amount. In this case, if you make 4 stops, your average speed will ---Se|ect--- if you make an additional stop. Need Help? 15. [-/1 Points] TANAPMATH7 9.4.062. ASK YOUR TEACHER PRACTICE ANOTHER Spending on Medicare Based on the current eligibility requirement, a study conducted in 2004 showed that federal spending on entitlement programs, particularly Medicare, would grow enormously in the future. The study predicted that spending on Medicare, as a percentage of the gross domestic product (GDP), will be P(t) = 0.27:2 + 1.4t + 2.2 (o s t s 5) percent in year t, where t is measured in decades, with t = 0 corresponding to 2000+ (Round your answers to two decimal places.) (a) How fast was the spending on Medicare, as a percentage of the GDP, growing in 2030? , %/decade How fast will it be growing in 2050? c'loldecade (b) What was the predicted spending on Medicare in 2030? % What will it be in 2050? % Need Help? _