Answer:

Step-by-step explanation:
Given




Required
Find the height
The volume is calculated as thus:

This gives

Apply difference of two squares


Subtract 15 from both sides

Using a calculator to factorize, we have:

Split
 or
 or 
 or
 or  
x has complex roots for 
Hence:

Recall that:


 
        
             
        
        
        
19, cuz 4x19 is 76 and 72<76
        
                    
             
        
        
        
Its the second one: 5n-3=12
        
             
        
        
        
For this problem, we just have to use the values we're given to calculate the approximate value of pi.
The formula presented is

When you have a negative exponent, we can use the following property

Using this property, our problem turns out to be

Now, we just need to plug the given values on this equation

The approximated value for pi is 3.142.
 
        
             
        
        
        
Answer:
not 100% but i think x may be 23.5
Step-by-step explanation: