2 Points
The circle below is centered at the point (-1, 2) and has a radius of length 3.
What is its equation?
O
A. (x-1)2 + (y + 2)2 = 9
(x+ 2)2 + (x-1)2 =
O
O C. (x-2)2 + (y + 1)2 =
O D. (x+1)2+(y-2)2 = 9
SUBMIT

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.