Answer:
The volume of given cone is 602.88 cube units
Step-by-step explanation:
<u>Formula:</u>
Volume of cone, V = πr²h
r - Radius of cone
h - height of cone
<u>To find the volume</u>
Here, r = 4 and h = 12
Volume V = πr²h
V = 3.14 *4²*12
V = 3.14*4*4*12
Volume V = 602.88
Therefore the volume of given cone is 602.88 cube units
Answer:
The population in 40 years will be 1220.
Step-by-step explanation:
The population of a town grows at a rate proportional to the population present at time t.
This means that:

In which P(t) is the population after t years, P(0) is the initial population and r is the growth rate.
The initial population of 500 increases by 25% in 10 years.
This means that 
We apply this to the equation and find t.




Applying ln to both sides




So

What will be the population in 40 years
This is P(40).


The population in 40 years will be 1220.