Use the Sine Law: 
In this case:
therefore:
In this case:
therefore:
Jason places a mirror on the ground 40 feet from the base of a tree. He walks backwards until he can see the top of the tree in
2 answers:
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Answer:
it have no answer in real number(but it have in complex number if you know)
Step-by-step explanation:
4x^2+36=0
4x^2=-36
(if you know complex numbers see this: x^2=-9 then
)
