Answer:
f(3)=21
Step-by-step explanation:
f(1)=3 
f(n)=2f(n-1)+3
n=2
f(2)=2f(2-1)+3
f(2)=2f(1)+3
f(2)=2*3+3
f(2)=6+3
f(2)=9
n=3
f(3)=2f(3-1)+3
f(3)=2f(2)+3
f(3)=2*9+3
f(3)=18+3
f(3)=21
 
        
             
        
        
        
Step-by-step explanation:
18÷3=6
6×9=54
HOPE THIS HELPS!!
 
        
             
        
        
        
8. Similar parts 


Choice a
9. The Law of Sines says a:b:c and  are the same ratio.
 are the same ratio.
The sines will go in order for acute angles, we have to convert 120 to its supplement 60 and then the order is 29,31,"60" or opposite sides JK, KL, JL
choice b
10.
 DEF and FEG are supplments, FEG=180-DEF=180-114=66
DEF and HEG are opposite angles, so congruent HEG=DEF=114
chioce a
 
        
             
        
        
        
Answer:
A, B, D, F is the answer to the question 
 
        
             
        
        
        
Answer: a<13
Step-by-step explanation:
a*(a+1)<a^2+13
a^2+a<a^2+13
subtract a^2 from both sides:
a<13