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23-04-2017
Mathematics

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An ore ship is traveling west toward Duluth on Lake Superior at 18 miles per hour. The bearing of Split Rock Lighthouse is 285deg. After 1 hour the bearing of the lighthouse is 340deg. Find the distance between the ship and the lighthouse when the second bearing is determined. WHAT???

Respuesta :

07-05-2017

We are given
v = 18 m/hr west
θ1 = 285°
θ2 = 340°

After 1 hours, the distance traveled by the ship is
dv = 18 mi

The distance between the ship and the lighthouse is
d = 18 / cos 340
Solve for d

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