Find a formula for the described function. An open rectangular box with volume 3 m3 has a square base. Express the surface area SA of the box as a function of the length of a side of the base, x.

Step-by-step explanation:

Given

--- volume

Required

The surface area as a function of base length

The volume (V) is calculated as:

Make y the subject

Substitute 3 for V

The surface area of the open box is:

Substitute:

Hence, the function is:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk