Give the domain and range.
A relation. An arrow goes from negative 2 to 4, from 0 to 6, from 2 to 8.
a. domain: {–2, 0, 2}, range: {4, 6, 8}
b. domain: {0, 2}, range: {6, 8}
c. domain: {4, 6, 8}, range: {–2, 0, 2}
d. domain: { 6, 8}, range: {0, 2}

∠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°

the radius is 2 times the diameter.

step-by-step explanation:

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation: