Answer:
g(5n)=5n^2+4
Step-by-step explanation:
Substitute 5n for x
5n^2+4
You can't really do much with this so that is the answer
 
        
             
        
        
        
Answer:
√3/10 = 0.1732
Step-by-step explanation:
√15 / 5√20 = (√5 x √3) / 5(√5 x √4) = √3 / (5 x√4) = √3 / 10
 
        
             
        
        
        
F(-1) = 2(-1)^2 + 8(-1)
= 2(1) + (-8)
= -6