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April 16, 2014

Homework Help: Algebra/Trig Check Answers please

Posted by Missy on Saturday, February 11, 2012 at 4:52pm.

Please check these answers thanks.

1. The shadow of a vertical pole is 24.8 feet long when the angle of elevation of the sun is 42degrees 0.0'. Find the height of the pole.

Answer: 22.3=height

2. From a point on a lighthouse 108 feet above water, the angle of depression of a boat is 10degrees 10'. How far is the boat from the lighthouse?

Answer: 19.4=distance

3. What is the angle of elevation of the sun when a vertical pole 18 feet high casts a shadow of 11 feet long?

Answer: 36degrees=angle of elevation

4. In measuring the length of the east-west boundary of a piece of land, a surveyor comes to a marshy place. He diverts his path from a point P on the boundary line directly north to Q and from Q returns to R on the line. If the bearing of R from Q is S 60degrees 00'E and the distance PQ is 320 feet, find the distance PR.

Answer: 369.5= distance

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