Question 7 of 10 Evaluate this exponential expression.
4.(2 + 5)2 - 52 =
A. 144
B.8
C. 171
D. 46

(2+5)2-52

=7× 2-52

=14-52

= -42

not in this list but that's right answer

∠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°

okay wait before i answer, is this for your points on a graph?