Answer:
candice
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
154°
Step-by-step explanation:
They are alternate angles.
 
        
                    
             
        
        
        
Answer:20
Step-by-step explanation:
1:multiply
2:10x2
3:10x2=20
 
        
             
        
        
        
 Answer:
Step-by-step explanation:
hello : 
 the nth term of an arithmetic sequence is :
An =An+(n-p)d   ....a common difference is : d   
let : n=15    and   p=1    d= 4     A15 =43
 A15 = A1 + (15-1)(4)
43= A1 +56
A1= 43-56 = - 13
 
        
             
        
        
        
F=½(r+6.5)
f=½r+3.25
f-3.25=½r 
(f-3.25) / 2 = r