Let
x---------------> <span>the height of the tree
we know that
by using proportion
</span>

<span>
therefore
the answer is</span><span>
the height of the tree is </span>
feet
I think the answer is a but I'm not sure
I would say D I hope this helps
Answer:
In the case of a quadratic equation ax2 + bx + c = 0, the discriminant is b2 − 4ac; for a cubic equation x3 + ax2 + bx + c = 0, the discriminant is a2b2 + 18abc − 4b3 − 4a3c − 27c2.
Step-by-step explanation: