Solve the problem. Be sure to make a diagram of the situation with all the given information labeled.
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A tree on one side of a river is due west of a rock on the other side of the river. From a stake 19 yards north of the rock, the bearing of the tree is S18.7°W. How far is it from the rock to the tree? Round to the nearest tenth of yards.
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A. 7.9 yd
B. 11.7 yd
C. 6.4 yd
D. 5.4 yd
E. 4.0 yd
Answer: C
Mathematics