<h3>
Answer:  20.3</h3>
Work Shown:
tan(angle) = opposite/adjacent
tan(B) = AC/AB
tan(67) = x/8.6
8.6*tan(67) = x
x = 8.6*tan(67)
x = 20.2603303460843  ... make sure your calculator is in degree mode
x = 20.3  .... rounding to 3 significant figures
see diagram below
 
        
        
        
Answer:
18225
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Answers below
Step-by-step explanation:
1)  4 (x+4)
2) 4x + 16
3) 2x+8
4) 2x+8
5) 3x+9
 
        
                    
             
        
        
        
7/2=y/3
21=2y
Y=21/2
Hope this helps!