This is a parabola, meaning the equation is a quadratic, so it has 2 roots or x-intercepts, keeping in mind that vertex will lie half-way between those intercepts.
so what's the x-value halfway between -3 and 7? yeap, you guessed it, 2.
so the axis of symmetry for this vertical parabola will be at x = 2.
Answer:
So the cost of labor is $65 per hour.
B I believe hope it helps :)
Because the 2 sides of the triangle are identical, both are labeled as 7, then the 2 bottom angles, J & L are the same.
J = 25, so L also equals 25 degrees.
The answer is C.
