X 5.2.19 Find the quadratic function y = ax2 + bx+c whose graph passes through the given points.
(-2,-27), (3, - 42), (1, -12)
y =

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.

What is the the greatest common factor ?

What is the solution for 6 - 7/8? explain the steps.