Use the rule: y=-3x+2 to find the value of y if x=5​

y = 17

Step-by-step explanation:

y = 3x + 2

y = 3 ( 5 ) + 2 ( given :- x = 5)

y = 15 + 2

y = 17

∠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°