{(-15, 3), (-5, 1), (0, 0), (10, -2)}
Constant:
Equation:
Please help!!

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Math question.. plz me .. best answer all