Answer:
D
Step-by-step explanation:
R(x) = -x^2+122x+400
Answer:
the answer to your question is 'b'
Answer: 360
Step-by-step explanation:
310 + 50 = 360
If it involves an Arc, the inscribed angle is 1/2 of the measure of the are across from it. If the figure inscribed in a quadrilateral, opposite angles are supplementary (when added together equals 180 degrees) This is all I know :)