... when the universe grows cold. (Or someone made a typesetting mistake.)
Standard deviation is the square root of a non-negative number. It will NEVER be negative.
 
        
             
        
        
        
The best answer is 26 and can you 
Mark brainliest or you need to find the sum
        
                    
             
        
        
        
Answer:
DEF = 110
Step-by-step explanation:
Supplementary angles add to 180
3x+5  +2x = 180
Combine like terms
5x +5 = 180
Subtract 5 from each side
5x = 175
Divide each side by 5
5x/5 = 175/5
x =35
DEF = 3x+5
      = 3*35 +5
     = 105+5 
    = 110
 
        
             
        
        
        
Answer:
0.686 (approximately)
Step-by-step explanation: