Answer:
y = 9
Step-by-step explanation:
So if x = 3, we can sub that into the equation.
This gives us:
6.4 (* 3) + 2.8y = 44.4
so:
19.2 + 2.8y = 44.4
25.2 = 2.8y
so
-6+12t
Answer: zxy=39 wxy=78
Since xz bisects wxy, the 2 angles that make up wxy are equal.