What is the perimeter of the Triangle ABC is the vertices are A(13,-2), B(9,-8), C(5,-2). Round to the nearest tenth.

x+y=90

x=30-y=x

step-by-step explanation:

if you understand you will get the answer

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

cant

step-by-step explanation: there is no picture