Which set of coordinates satisfies the equations 3x - 2y =15 and 4x - y = 20

You use elimination the get x=5 and then plug it in to get y=0 so the coordinate is (5,0)

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

unless if u could do my questions, if not i wouldn't want to