2(22 + w) 120
22 + w 60
w 38
C = 2 x pi x r
divide each side by 2 x pie to get r by itself.
45/(2(3.14)) = r
r = 7.17
Answer:
it is 12
Step-by-step explanation:
x is infinite
x is a function so
if y=f:x
therefore
sin(theta) + cos(theta) = 0
sin(theta) = -cos(theta)
sin(theta)/cos(theta) = -1
tan(theta) = -1
theta = - 45° ± k·180°