The quadratic formula is  .
.
From the problem, a is 1, b is -1, and c is 12. Plugging in these values gives:

Because there is a square root of a negative number, there is no solution.
 
        
             
        
        
        
Corresponding angles:
8< and <16
hope it helps
        
                    
             
        
        
        
Answer:
4/5 is greater than 3/8, so this sign: >
 
        
                    
             
        
        
        
Answer:
Проведите линию через форму, чтобы каждая сторона была зеркальным отражением. Когда фигура складывается пополам по оси симметрии, две половинки совпадают. На этой фотографии белая линия по центру представляет собой вертикальную ось симметрии.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
B. One
Step-by-step explanation:
Since the two angles are already given, the value of the third angle is already fixed. The third angle can be found by the sum of both angles subtracted from 180. Since 2 angles and lengths are already given, there can only be 1 triangle.
Hope this helps!
If not, I am sorry.