Help me find the domain and range for these two problems. If possible, a detailed explanation of how to get the answer would be appreciated (although I don’t mind just giving me the answer).

∠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°

b.-4 units

all you   do is count how many times you move

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step-by-step explanation: