<z = 180 - 43
<z = 137
answer
<z = 137 degrees
It would be the middle choice. The choice on the left represents a line, and the choice on the right represents a line segment.
Hope this helps!
2 litres every 2.5 minutes is 4 litres every 5 minutes so therefore, it is 0.8 litres/minute (800ml per minutes)
Cos(x°) = (√3)/2
cos⁻¹[(√3)/2] = x°, that means x° = 30°
