Answer:
d is the correct answer to this question
I don’t know this answer but I think it’s 81
Answer:
in terms or pi
simplified
Step-by-step explanation:
To solve this, we are using the Cylinder's volume formula:

where
is the volume of the cylinder
is the radius of the cylinder
Remember that radius is half the diameter, so we can divide the diameter of our cylinder by 2 to find its radius:
. Now, 9 1/2 inches is 9 and a half inches, so
.
Replacing values:




We can conclude that the volume of our cylinder is
in terms of pi, or
simplified.
Suppose the number is x, its reciprocal is 1/x
x+1/x=13/6
(x^2+1)/x=13/6
6(x^2+1)=13x
6x^2-13x+6=0
(3x-2)(2x-3)=0
x=2/3 or x=3/2