5z^3-2z^4-9z^2+z5z 3
−2z
4
−9z
2
+z5, z, cubed, minus, 2, z, start superscript, 4, end superscript, minus, 9, z, squared, plus, z
What is the degree of the polynomial?

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.

#7. m is the midpoint of pq, the diameter of the circle o is 13in. and rm = 4in. find pm find pq

△abc is similar to △xyz. also, side ab measures 6 cm, side bc measures 18 cm, and side xy measures 12 cm. what is the measure of side yz ? enter your answer in the box.