Find the difference between the measure of the largest angle

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

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.