Question

A road's profile is given by the function 30 +22, for 0 sx 15, where x is the 40 25 horizontal distance in miles, and y is the elevation in feet above sea level. 20 15 10 2 4 6 8 10 12 14 FOR THE FOLLOWING PROBLEMS, USE AT LEAST 3 DECIMAL PLACES OF PRECISION FOR COMPUTATIONS, BUT REPORT FINAL ANSWERS TO 1 DECIMAL PLACE. a) Determine the average elevation of the road over the interval 0sx 515. Find the exact value, then approximate on the final step c) Your boss tells you to "make the road horizontal' by cutting off the hills and filling in the valley. Where do you make the cuts? If the road is 20 feet wide, how many cubic feet will you ng? Summarize all results below.

Answer 1

- +22 I 5 15 IS -12.233 33° ) 15 613)2111 gfa