lauramckeenna lauramckeenna

25-02-2017
Mathematics

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two angles with measures (2x^2+3x-5) and (x^2+11x-7) are supplementary. find the value of x and the measures of each angle.

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sdmatera sdmatera

25-02-2017

I found the value of x to be 6 by adding the two equations together and setting them equal to 180.

2x^2+3x-5+x^2+11x-7=180
When you solve for x you get x=6

Then you plug 6 in for x in each angle. The first angle is 85 and the second is 95.

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