That's the second one,
180 - x = r
Whenever two lines cross we get congruent opposite angles and supplemental adjacent angles, i.e. they add to 180 degrees.
The first one is almost right; we have r+y+z=180 and r+x=180 so x=y+z not quite what was written.
B. y = -2 + 4
y = 2 not 5
Answer: 113.1
Step-by-step explanation:
The formula is 


The radius is 3, and 3 cubed is 27.
Then, 27 x
is about 84.82
Finally, 84.82 x
is about 113.1
Hope this helps. Please mark as brainliest, thanks!
Answer:
(2,1)
Step-by-step explanation: