Calculate the inverse of the matrix and find the values for a, b, c, and d:
1 answer:
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Answer:
86.63 ft
Step-by-step explanation:
The tangent relation applies.
Tan = Opposite/Adjacent
tan(77°) = (tree height)/(20 ft)
tree height = (20 ft)·tan(77°) ≈ 86.63 ft
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<em>Additional comment</em>
It is somewhat problematic for Bob to see the top of a white pine tree at that angle of elevation. His view would likely be obscured by the branches of the tree.
General equation of parabola
- y=a(x-h)²+k
for vertex(h,k)
Now
- Put (1,-3) and find a
So
equation of parabola
