Saturday

December 20, 2014

December 20, 2014

Total # Posts: 9

**trigonometry**

A surveyor made two sections of the railroad bridge, both at 210 meters in length. Suppose that the maximum of elevation of each section is 75deg. When the bridge is closed, the water level is normally 13 meters below the bridge. a. When the bridge is fully opened, what is the...
*August 14, 2010*

**trigonometry**

From lookout tower 80ft. high, a man observes from a position 6.5 ft. below the top of the tower that the angle of elevation of the top of the certain tree is 12deg40mins and the angle of depression of its base is 70deg20mins. If the base oof the tower and the base of the tree...
*August 14, 2010*

**trigonometry**

A 36 ft. ladder is used to reach the top of 28ft. wall. If the ladder extends 2 ft. from the top of the wall, find its inclination to the horizontal.
*August 11, 2010*

**trigonometry**

two points, A and B, are 526 meters apart on a level strecth of road leading to a hill. The angle of elevation of the hilltop from A is 26deg30mins, and the angle of elevation from B is 36deg40mins. How high is the hill?
*August 11, 2010*

**trigonometry**

From a mountain 1780 ft. high, the angle of depression of a point on the nearer shore of a river is 48deg40mins and of point directly across on the opposite side is 22deg20mins. What is the width of the river between the two points?
*August 10, 2010*

**trigonometry**

An observer at A looks due north and sees a meteor with an angle of elevation of 70deg. At the same instant, another observer 30miles east of A, sees the same meteor and apprroximates its position as N 50deg W but fails to note its angle of elevation. Find the height of the ...
*August 10, 2010*

**Trigonometry**

frrom outlook tower 80ft. high, a man observes from a position 6.5ft. below the top of the tower that the angle of elevstion of the top of certain tree is 12deg40mins and the angle of depression of its base is 72deg20mins. If the base of the tower and the base of the tree are ...
*August 10, 2010*

**TRIGONOMETRY**

Because of the wind, a boat sails 4,728 meters in the direction S 47deg29mins W. How far south it goes? How far west has it gone? this is my report..please help me..i tried so hard but i really didn't get it..thanks!
*August 6, 2010*

**TRIGONOMETRY**

A passenger on a ship sailing north at 5.0 mph noticed that at noon a radio tower on land was due east of the slip. At 1:30pm, the bearing of the tower from the ship was S 35deg E. How far was the ship from the tower at 1:30pm?
*August 6, 2010*

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