Which expression is equivalent to (2x-3)^2 - 3.5x^2 ( 2x -5 )+ 6x (2.5x^2 - x + 3.1)

The answer to your question is  $ 8591.04

Step-by-step explanation:

Data

height = 11.4 m

diameter = 12 m

cost = $20/ft³

Process

1.- Calculate the volume of the cone

Formula

Volume = 1/3 πr²h

Substitution

Volume = 1/3 (3.14)(12/2)²(11.4)

Simplification

Volume = 1/3(1288.66)

Volume = 429.55 m³

2.- Calculate the cost

                $20 1 m³

                   x   429.55 m³

                   x = (429.55 x 20)/ 1

                   x = $ 8591.04