ayoismeisjjjjuan
28.07.2019 •
Mathematics
As viewed from cliff 360 m above sea level the angle of depression of a ship is to 28° how far is the ship from the shore
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Ответ:
tan θ=opposite/adjacent
θ=28°
adjacent=x
opposite=360 m
substituting the values in our equation we get:
tan 28=360/x
solving for x we get
x=360/tan 28
x=677.06 m
Ответ:
Since you know y = -2x-6, you can easily plug into the other equation
2(-2x-6) = - 4x - 12
-4x - 12 = -4x - 12
True
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