Question: Please answer both 21. Tom is on an island 2 miles offshore and wishes to reach a coastal village 6 miles down a straight shoreline

Please answer both

21. Tom is on an island 2 miles offshore and wishes to reach a coastal village 6 miles down a straight shoreline from the point on shore nearest the island. He can row his boat 2 mph and can walk 5 mph. Where should he land his boat to reach the village in the least amount of time? What is the minimum time? 22. The resistance of a wire varies inversely as the area of the wire, i.e. the wider the wire, the easier it is 250 to push electrons through it. The resistance of a particular type of wire is R = whereris the r radius of the wire in mm and R is measured in QQ (Ohms). If the radius is measured at 2.2 mm with an error of + 0.4 mm, what is the approximate error in the resistance using differentials

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