There are 320 7th graders at North Davis Jr High. Mr. Brown randomly surveys 50 7th graders about the amount of homework they receive. He finds that the students surveyed spend an average amount of 35 minutes per night working on homework. What is the sample in this scenario?

the sample is the 50 7th graders because those are the one he surveyed

∠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°