I THINK YOU WILL GET THE ANSWER FROM THESE.
HOPE IT HELPS :)
16+90+2y =180 since it is a straight line
106 +2y = 180
subtract 106 from each side
2y = 74
divide by 2 on each side
y=37
90+2y+O = 180 since it is a straight line
90 + 2(37) +O = 180
90+74 +O = 180
164+0 =180
subtract 164 from each side
O = 16
O +4x+90=180 sine it is a straight line
16 + 4x +90 = 180
106 +4x = 180
subtract 106 from each side
4x = 74
divide by 4
x=18.5
Domain of f(x) = pi cos x is ALL REAL NUMBERS.
The range of f(x) = pi cos x is [-1, 1].
<span> I believe a is going to be a circle</span>
4 * 2 = 8
8 + 5 = 13
B, is the correct answer