What is the domain for the graph below? is my answer right for this math problem?

A) {x | x ∈ R}

Step-by-step explanation:

You are correct.  Domain is: all of the values that x can be.  In the given graph, the x-values goes to negative infinity and to positive infinity.

∠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°

50.6

step-by-step explanation: