Answer: 33
 
To maximize the length of the third side, which I'll call x, it needs to be the longest side.
So by the triangle inequality theorem, 19+15>x, meaning the maximum whole number value of x is 33.
 
        
             
        
        
        
Answer 38.6
Step-by-step explanation:
21 x .84 = 17.64
17.64 + 21 = 38.64
 
        
             
        
        
        
Answer:226.2
Step-by-step explanation
Lateral= 2πrh 
H=12
R=3
2*π*3*12=226.19
Round to nearest 10th is 226.2
 
        
             
        
        
        
Repeating.................................
        
                    
             
        
        
        
Answer:
6=a
7=b
9=b
Step-by-step explanation:
SOMEONE DELETED MY ANSWER AND IT WAS CORRECT ANY WAY SORRY I DONT KNOW ALL OF THEM