Answer:
Hello! answer: 16
Step-by-step explanation:
These are a bit different instead your solving for B so you have to work backwords so... 20 × 20 = 400 12 × 12 = 144 400 - 144 = 256 now we just find out what multiplied by itself = 256 16 × 16 = 256 therefore b = 16 Hope that helps!
 
        
                    
             
        
        
        
3x - 6y = 20
-6y = -3x + 20
y = 1/2x - 20/6.....slope = 1/2...y int = -20/6 = -10/3
2x - 4y = 3
-4y = -2x + 3
y = 1/2x - 3/4..slope = 1/2...y int = -3/4
same slope, different y int = parallel lines = no solution = inconsistent
        
                    
             
        
        
        
Answer:
The correct option is 1.
Step-by-step explanation:
If a quadratic equation is defined as 
 .... (1)
             .... (1)
Then the sum of the roots is -b/a and the product of roots is c/a.
The given equation is 
 ... (2)
          ... (2)
From (1) and (2) we get a=3, b=11 and c=-4.
The sum of roots is

The sum of roots is  .
. 
Therefore the correct option is 1.
 
        
             
        
        
        
Answer:
They are supplementary angles. 
Hope it will help :)