3 years ago

Which pair of angles must be supplementary?

Mathematics

2 answers:

Alex_Xolod [135]3 years ago

6 0

∠3 and ∠4 are angles that must be supplementary.

Elina [12.6K]3 years ago

4 0

If something is supplementary, that means that together they must equal 180.
A line=180

<3 and <1 are supplementary because they are linear pairs, meaning that together they must equal 180

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NeX [460]

The answer is B. 2y+3
this is proven by multiplying the divisor of the original question and the solution
$(y-5)(2y+3)
 2y^{2}+3y-10y-15
 2y^{2}-7y-15$