\left[x \right] = \left[ 0\right][x]=[0]
The 105 per hour mechanic worked for 10 hours and the other worked for 15. here's the math.
(x + x² + 4x) 3
3(x) + 3(x²) + 3(4x)
3x + 3x² + 12x
The error is that the student measured the wrong side. Acute angles are less than 90 degrees. So it isn’t possible for the measure to be over 90. The correct measure is 49
The answer is 41, because I just took the quiz and that was the correct answer :)
