Tuesday
July 22, 2014

Homework Help: Pre-Cal

Posted by Adrianna on Saturday, March 17, 2012 at 10:21pm.

A pilot wishes to fly on course 290 with an air speed of 300 knots when the wind blows from 224 at 18 knots. Find the drift angle to the nearest hundredth of a degree.

A.3.22
B.5.07
C.86.86

A river is flowing at the rate of 2.4 miles an hour when a boy rows across it. If the boy rows at a still-water speed of 3.1 miles per hour and heads the boat perpendicular to the direction of the current. The ground speed of the boat is 3.9 miles per hour.

A.True
B.False


Two submarines, one cruising at 25 knots and the other at 20 knots, left a naval base at the same moment. Three hours later they were 100 nautical miles apart. What was the measure of the angle between their courses?

A.85
B.95
C.105

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