1 + 5 = 6
3 + 3 = 6
3 + 47 = 50
7 + 43 = 50
13 + 37 = 50
19 + 31 = 50
Answer:
I think it's the third one sry if I'm wrong
Answer:
π·r^3 + 7·π·r^2 = r^2·π·(r + 7)
r + 7 is the height of the cylinder.
The answer is y=0. As you can see in the graph when x=1, y=0. I added a picture so you can see it.