Need help with this total surface area and stationary point question (image attached)

a.

b. 288 sq units

Step-by-step explanation:

Given the dimensions of the base sides and the cuboids volume, we can calculate its height:

Having determined h=.

The surface area of the cuboid is the sum of all its faces area;

=A, hence, proved!

b. Find stationary value of A

We find the critical point  of the function:

Hence, x is undefined. The stationary area is therefore calculated as:

The area is 288 sq units

answer: a) (0,0), (1,1), (2,8), and (3,27).

step-by-step explanation:

0^3=0

1^3=1

2^3=8

3^3=27

in effect, the exponential equation for this would me y=3^x. each x-coordinate cubed is giving the y coordinate, so a is your answer : )

the square root of what number? if you add that, then someone will probably answer the question.