Answer:
circumference=9.42
Step-by-step explanation:
the formula for circumference is pi x diameter.
 
        
             
        
        
        
Answer:
 The factored form 
 is 
.
Step-by-step explanation:
Given : 
We have to write the given expression in factored form.
Factor form of an expression is writing the expression in lower power form such that the product of factors given the original expression 
Consider the given expression  
.
We know the algebraic identity 
Here 
.
Comparing with identity stated above , we have x= a , b = 11 , thus, we get
.
Thus, the factored form 
 is 
.