SOLUTION: m<A=x^2-15x+30 and m<B=4x+70. <A and <B are supplementary. Find the measure of each angle.

Algebra ->  Angles -> SOLUTION: m<A=x^2-15x+30 and m<B=4x+70. <A and <B are supplementary. Find the measure of each angle.      Log On


   

Question 493816: m
Answer by cleomenius(959) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 - 15x + 30 + 4x + 70 = 180
x^2 - 11x -80 = 0
(x + 5)(x - 16) = 0
x = 16
256 - 240 + 30 = 46 degrees.
4(16) + 70 = 134 degrees
134 + 46 = 180 degrees.
Cleomenius.