row to reach the town in the shortest possible time, if you can row at 4 miles/hr and walk at 5 miloc/br3

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Additional Topics In Trigonometry
Section3.2: Law Of Cosines
Problem 3ECP: In a softball game, a batter hits a ball to dead center field, a distance of 240 feet from home...
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c) You are standing on the bank of a river that is 1 mile wide and want to get to a town on the
opposite bank, 1 mile upstream. You plan to row on a straight line to some point R on the
opposite bank and then walk the remaining distance along the bank. To what point R should you
row to reach the town in the shortest possible time, if you can row at 4 miles/hr and walk at 5
miles/ hr?
Transcribed Image Text:c) You are standing on the bank of a river that is 1 mile wide and want to get to a town on the opposite bank, 1 mile upstream. You plan to row on a straight line to some point R on the opposite bank and then walk the remaining distance along the bank. To what point R should you row to reach the town in the shortest possible time, if you can row at 4 miles/hr and walk at 5 miles/ hr?
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