B) Find the value of
4(a – 3b) when a = -8 and b = 1/3

-36

Step-by-step explanation:

4(-8-3*(1/3)) = 4(-8-1) = -36

∠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°

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled