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2 votes
I don’t remember how do to any of them

I don’t remember how do to any of them-example-1

1 Answer

4 votes

Answer:


12x+9 and
99° are supplementary to each other.

Explanation:

Supplementary means that two angles added together make 180°.

Looking at the graph, you can see that angles
12x+9 and
99° both combined make 180°, so they are considered supplementary.

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User Marijan
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