What is the equation of the parabola in vertex form. vertex(4,4),point(2,-4)
the ratio of the sides of triangle jkl to triangle rst is 5: 4.
let's take the corresponding sides jl and rt. note they are opposite the equal angles marked '(('.
jl / rt = 25 / 20
in an equilateral triangle, each angle is the same
so each angle equals 60
subtract 3 from each side
5y +3-3 = 60-3
5y = 57
divide by 5
5y/5 = 57/5
y = 11.4