The answer should be 1.8 or 1 4/5
26
3<span>⟌78
-6
-------
18
-18
-------
0
</span>
Answer: of each shape? 3 & 4?
Step-by-step explanation:
Answer:
The rate of decrease is: 
Step-by-step explanation:
Given

---- We used minus because the rate is decreasing
Required
Rate of decrease when: 
The volume of the cube is:

Differentiate

Make dV the subject

Divide both sides by dt

Given that:
and 



<em>Hence, the rate of decrease is: 43.2mm^3/min</em>