The middle answer is the only correct one.
Answer:
If you're trying to find the measurement of angle z then it'd be 2x degrees, since its twice that of angle y, which is x degrees
Step-by-step explanation:
3x + y = 9
3x - 5y = 15
15x + 5y = 45
<span>3x - 5y = 15
</span>
18x = 60
x = 10/3 or 3.33.
Plug that into the equation and Y is equal to -1. Hope this helped. Once again the answer is (10/3, -1).
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Neither
the slopes are not the same so they aren’t parallel
the slopes are not opposite reciprocals so they aren’t perpendicular