Answer:
A = 90.25 pi in^2
Step-by-step explanation:
The circumference is given by
C = 2*pi*r
19pi = 2*pi*r
Divide each side by 2 pi
19pi / 2 pi = 2*pi*r/ 2pi
9.5 = r
The area is given by
A = pi r^2
A = pi ( 9.5)^2
A = 90.25 pi in^2
Your answer would be y=2x+1 because if you get the x and multiply the x by 2 then add 1 you get the y
5(2)^3 - 2(2)^2 + 3
5(8) - 2(4) + 3
40 -8 +3
35
