Answer: Line R and Line P are perpendicular because they intersect at a point and create a pair of equal angles.
Step-by-step explanation:
A. 4x-6y-14 = 0
Math & Reasoning:
You cannot simplify 4x-6y=14 any other way than subtracting 14 from both sides. You could solve for X and Y, but it'd be a long process and by the time you did that you would have it in it's most simplified form.
Answer:
7
Step-by-step explanation:
AB//CD (Opposite sides of parallelogram are parallel)
Angle A + Angle B = 180 (Sum of interior angles=180)
138 + 7x - 7 = 180
7x - 7 = 180 - 138
7x = 42 + 7
7x = 49
x = 49/7
x = 7
45/1 is the rate of change or just 45