Answer:
B. c= -c+2 
Step-by-step explanation:
A. ...................
It has infinitely many solutions as the equation is correct for any value of c.
B. ...................
- c= -c+2 
 - c+c= 2
 - 2c = 2
 - c = 2/2
 - c= 1
 
It has one solution only
C. ...................
- c+2=c-2 
 - c-c= -2 - 2
 - 0 = -4
 
It has no solution as this equation is incorrect
D. ...................
It has no solution as this equation is incorrect
 
        
             
        
        
        
Answer:
 Some of the possible factorizations of the monomial given are:
 
 
Step-by-step explanation:
  To factorize the monomia you need to express it as a product of two or more monomials.  Therefore, you must apply the proccedure shown below:
 - Descompose into prime numbers:
 
 - Then, keeping on mind that, according to the Product of powers property, when you have two powers with equal base you must add the exponents, you can make several factorizations.  Below are shown some of the possible factorizations of the monomial given:
 
 
 
        
                    
             
        
        
        
Answer: 2/35
Step-by-step explanation:
qww
 
        
             
        
        
        
Volume of the cylinder = πr²h = π(1)² (21) = 21π cm³
Volume of the cone = 1/3 π r² h
21π = 1/3 π (r)² (7)
r³ = 21π ÷ (7/3 π) 
r² = 9
r = 3
Answer : Radius = 3