OilRig An Oil Rig is located a = 11 miles from a straight coastline. An Oil Refi

Question

OilRig An Oil Rig is located a = 11 miles from a straight coastline. An Oil Refinery is located 16 miles down the coastline. The cost of putting in a pipeline from the Oil Rig to the Oil Refinery depends on whether it is on land or in the water. Rather than coming directly to the shoreline and then turning at a Right Angle, suppose that the Oil Pipeline met the shore at a point b = 4 miles from the "Right Angle". If the cost is $9000 per mile for land and $15000 per mile for water, what is the cost of the Pipeline? Do not use a $ sign or any commas in your answer.

Explanation / Answer

distance covered in water=sqrt(4^2+11^2)=11.704 miles

distance covered in land=16-4=12 miles

so net cost=9000*12+15000*11.704=283560 dollars

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