Answer:
BC = 19.78
Step-by-step explanation:
using sin(x) rule 
sin(54)= 16/BC
sin(54)=0.80
∴0.80=16/BC  (divied both side by 0.80)
BC=16/0.80 =19.78
 
        
             
        
        
        
We will have the following:


So, the solution would be:
 
 
        
             
        
        
        
Answer:Solve. 2a + 3b = 5 6= a -5 a = 4 b = -1 1 a = 6 b=1 a=6 6 = -1 a=4 6 = 1
Step-by-step explanation:
 
        
             
        
        
        
Y=2/x. this equation has degree -1 whereas linear functions have degree 1
y=6x²-7 is nonlinear as it is degree 2
        
                    
             
        
        
        
Percent increase/decrease is:
(Change/original amount)x100
(.25/2.35)x100= 10.6%