The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 5 foot5 foot length with diameter 2 inches costs $48.00, how much will a 13 foot13 foot length with diameter 55 inches cost? Round to the nearest cent.

it will cost $312

Step-by-step explanation:

Please kindly see the attached file for explanation

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation: