138 Degrees because it’s supplementary so 180 - 42 = 138
You could either:
a) Use the Pythagorean Theorem
b) Use Sine/Cosine/Tangent Inverse to find one of the angles, and then use that angle to find x.
Answer y=mx+b
Step-by-step explanation: b is the y intercept and x is the slope
Sorry but grade math is this so I can have a better understanding
