The discriminant of the equation

is 76.
I hope that helps.
Take the decimal and multiply it by 100.
Answer:
A=640.88
Step-by-step explanation:
if the diameter is 12, the radius , r=12/2=6
we have r=6, h=11
Surface area, A= 2πrh+2π r^2
A=2*3.14*6*11+2*3.14*(6)^2=640.88
Use the cone formula:
And so:

5654866.7 / 12000 = 471,
So the answer is 471 weeks.
Hope this helps.
V=(hπr^2)/3, π≈3.14, h=7, r=2
V≈29.3 cm^2