I’m not sure if I get the question, but the second one would be a fact and the others are all statements. I hope this helps :)
The answer is in the image:
Answer:
m
Step-by-step explanation:
Let
Bas length of box=b
Height of box=h
Material used in constructing of box=36 square m
We have to find the height h and base length b of the box to maximize the volume of box.
Surface area of box=




Volume of box, V=
Substitute the values


Differentiate w. r.t b







The negative value of b is not possible because length cannot be negative.
Again differentiate w.r.t b

At

Hence, the volume of box is maximum at
.




m
Answer:
I think there is a picture that's suppose to go with this..??
Step-by-step explanation: