Answer:
The volume of a cylinder:
 
 
Step-by-step explanation:
To find the volume of a cylinder, you need the this formula:

-Use the given height and radius for the formula:

-Then, solve the formula:




So, the volume of a cylinder is approximately  
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Answer:
B
Step-by-step explanation: Trust
 
        
             
        
        
        
Answer:f(x)=x2 +1
Step-by-step explanation:
The one represents C in the standard form and it can also be used to represent graph placement so +1 can also represent the vertex going up 1 on the y
 
        
             
        
        
        
Answer:
8x+y
Explanation:
3x+4y+5x-3y
Rearrange the terms so like terms are next to each other
3x+5x+4y-3y
Combine like terms
8x+y
I hope this helps!