Evaluate 8(6+5)
2²
A. 22
B. 3
C. 56
D. 112

A

Step-by-step explanation:

6 + 5 = 11  11 x 8 = 88

88/4=22

the answer is a

∠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°