The tables for f(x) and g(x) are shown below. x
f(x)
–5
–11
–2
1
1
13
5
29

x
g(x)
–5
–7
–2
–1
1
5
5
13

What is the value of (f – g)(5)?
–18
–4
16
42

the correct answer is 16

∠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°