Answer:

Step-by-step explanation:
The formula for the volume of a cone is:

Given:
- Radius = 2cm
- Height = 9cm
Let's plug these into the equation:

Now solve:

Therefore, the volume of the cone is 37.7cm^3.
<em>I hope this helps!!</em>
<em>- Kay :)</em>
 
        
             
        
        
        
Answer:
the original price is $7.89
the price on sale is $6.44
i hope this helps 
Step-by-step explanation:
divide $12.88 by 2 to get the price of one of those comic books on sale which gives you $6.44
if you want the original price you just add $1.45 to $6.44 and then thats the price before the sale. 
 
        
             
        
        
        
Answer:
y= x^2 - 4x + 2 
I did the test I got it right!
Hope it helps.
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Given
diameter of the cone is  ![d=23\ cm\quad [r=\frac{d}{2}=11.5\ cm]](https://tex.z-dn.net/?f=d%3D23%5C%20cm%5Cquad%20%5Br%3D%5Cfrac%7Bd%7D%7B2%7D%3D11.5%5C%20cm%5D)
The height of the cone is  
The volume of a cone is  
Insert the values

Thus, the volume of the cone is 