(2x-9)^2... determine terms that are alike
for this case we have to define trigonometric relations of rectangular triangles, that the tangent of an angle is given by the leg opposite the angle on the leg adjacent to the angle. So:

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Answer:
289 meters I believe.
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(2,11)
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what i did was actually substitution
It's like ..what I do when I've forgotten how to solve a particular equation in math or even physics
But I'd recommend you find the real solution cuz there's a formula
Answer: Again I ask.... What?
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