SOLUTION: Two angles with measures 2x2 + 3x - 5 and x2 + 11x - 7 are supplementary. Find the value of x.
Algebra.Com
Question 614949: Two angles with measures 2x2 + 3x - 5 and x2 + 11x - 7 are supplementary. Find the value of x.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Two angles with measures 2x2 + 3x - 5 and x2 + 11x - 7 are supplementary. Find the value of x.
-----
Equation:
2x^2+3x-5 + x^2+11x-7 = 180
----
3x^2 + 14x -12 = 180
----
3x^2 + 14x - 192 = 0
Factor:
(x-6)(3x+34) = 0
---
If x = 6
2x^2 + 3x-5 = 2*36+3*6-5 = 85 degrees
x^2 + 11x - 7 = 6^2+11*6-7 = 95 degrees
=============================================
cheers,
Stan H.
========================
RELATED QUESTIONS
- Two angles with measures 5x - 5 and 11x - 7 are supplementary. Find the Value of x and... (answered by Fombitz)
two angles with measures (5x+7) and (15x-7) are supplementary. what is the value of... (answered by oberobic,stanbon)
The Measures of the angles in a triangle are 3x, 4x, and 11x. Find the value of... (answered by richard1234)
Two angles are supplementary angles and angle measures 3x-4and angle2 measures 7x+14.find (answered by rfer)
Two supplementary angles have measures of 7X and 5X +72. Find the value of X.
(answered by Alan3354)
suppose∠x and∠Y are supplementary angles, If∠X=x2-9x and∠Y=11x+12 find the value... (answered by josgarithmetic)
the ratio of the measures of two supplementary angles is 7:2 . find the value of x and... (answered by edjones)
Two angles X and (5+4x) are supplementary. what is the measures of the... (answered by josgarithmetic)
Two angles with measures x2 + 5x + 100 and x2 + 9x - 40 are supplementary. Find the value (answered by mananth)