A student wants to measure the height of a tree. From a point What is the height of the tree to the nearest tenth of a foot? on the ground 10 feet away from the base of the tree, the
angle of elevation to the top of the tree is 65° as shown. The
feet
diagram is not drawn to scale.
Q
OG
65
10 feet

none of these

step-by-step explanation:

23 + 34 add up to 57 so just inform the teacher of this really stupid mistake

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0