QueenKayyy18 QueenKayyy18

27-02-2018
Mathematics

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calculista calculista

09-03-2018

we know that
(4x)+(5x+9)=180------------->supplementary angles
therefore
9x+9=180---------> 9x=180-9
x=171/9=19
x=19°

the answer is the option E
x=19°

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