The volume v of a cylindrical can is represented by the formula v=pir2 a cilindrical can has a volume of 1089 pi cubic centimeters and a height of 9 centimeters what is the radius of the can?

r =  (11√π)/π

Step-by-step explanation:

V = πr²h

We are given V = 1089, and h = 9.  Plug them into the formula and simplify

1089 = πr²(9)

        121 = πr²          (divide by 9 on both sides)

            121/π = r²     (divide by π on both sides)

           √(121/π) = r     (take the square root of both sides)

  Now simplify    √(121/π)

(√121)/(√π)

     11/√π

           [11(√π)]/[(√π)(√π)]

                (11√π)/π

so r =     (11√π)/π

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !