The answer is C you dived the circumference by 2 and use the formula for the area of a circle which is A = π × r^2
-20 + y = 2
y = 22
20 + 3y = 6
y = 14/3
Answer:
Equation of parabola: 8*(y - 2) = (x - 3)^2
or
y = (1/8)*(x - 3)^2 + 2
Step-by-step explanation:
focus at (3,4) and its directrix y = 0.
Focus equation: (h, k + c) = (3, 4)
Directrix equation y = k - c = 0
so h = 3, k + c = 4, k - c = 0
Solve the system : k + c = 4 and k - c = 0
add the equations together: k + c + k - c = 4 + 0
2k = 4
k = 2
so k + c = 4, 2 + c = 4, c = 2
4c (y - k) = (x - h)^2
4*2 *(y - 2) = (x - 3)^2
8*(y - 2) = (x - 3)^2
I believe x = 3 because it’s base times height & if you were to multiply 8 by 3 it’d give you 24.
The area is 297 because...
8 times 8.25 times 4.5 is equal to 297
