Complete question:
what is the answer to 22 +10x = 0
Answer:
the value of x is -2.2
Step-by-step explanation:
Given;
22 +10x = 0
collect like terms
10x = 0 - 22
10x = -22
divide both sides by 10

Therefore, the value of x is -2.2
 
        
             
        
        
        
Answer:
3156
Step-by-step explanation:
- <em>Used formula:</em>
- <em>(1² + 2² + 3² + ... + n²) =1/6*n(n + 1)(2n + 1)</em>
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- 10²+12²+14²+......+26² = 
- (2*5)²+(2*6)² + (2*7)² + ... + (2*13)² = 
- 4*(5²+6²+7²+...+13²) =
- 4*(1²+2²+...+13² - (1²+2²+3²+4²)) = 
- 4*(1/6*13(13+1)(2*13+1) - (1+4+9+16)) = 
- 4*(1/6*13*14*27- 30) = 
- 4*(819 - 30) =
- 4*789 = 
- 3156
 
        
             
        
        
        
Answer:
2/15
Step-by-step explanation:
2/3 / 5/1  =  
2/3 x 1/5 = 2/15
 
        
                    
             
        
        
        
The answer is going to be  yes it's rational. hope that helped
        
                    
             
        
        
        
Answer:
(5x + 7y)(25x² - 35xy + 49y²)
Step-by-step explanation:
125x³ + 343y³ ← is a sum of cubes and factors in general as
a³ + b³ = (a + b)(a² - ab + b² )
125x³ = (5x)³ ⇒ a = 5x
343y³ = (7y)³ ⇒ b = 7y
125x³ + 343y³
= (5x + 7y)((5x)² - (5x × 7y) + (7y)²)
= (5x + 7y)(25x² - 35xy + 49y²) ← in factored form