Answer:
= 2001.19452
Step-by-step explanation:
V=πr2h=π·72·13≈2001.19452
 
        
             
        
        
        
Cz I secretly enter this site 
Non of my family knows
Cz they are over protective lol
Only a cousin know
That's why l can't pay to comment 
It's sad life bro
 
        
             
        
        
        
For this case we have the following system of equations:

We multiply the first equation by -4:

We have the following equivalent system of equations:

We add the equations:

We find the value of the variable "x":

Thus, the solution of the system is:

See the graphic in the attached image
ANswer:

See the graphic in the attached image
 
        
             
        
        
        
You have to divide the second fractions by the first fraction to get the answer