7. Find the measure of KLM and M

m∠KLM = 64° ; m∠M = 26°

Step-by-step explanation:

(20x + 4)° = (6x + 4)° + (8x + 18)°

20x + 4 = 14x + 22

6x = 18

x = 3

m∠KLM = (20×3 + 4)° = 64°

m∠M = 90° - 64° = 26°

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

she will most likely have 33  

step-by-step explanation: