we can have a triangle  and we know that there are two angles. 
30º and a 45º + 105 =180º angle. applying the sides. 
therefore if we have the whole triangle completed we have a constant triangle. 
so it tell us we can you’se SOH CAH TOA 
we can varrify what kind of triangle we are using. 
for example if we were to use  Sin I would do 
Sin 30/ 2 = sin of 105º/ A = sin=45º/ B
if you would want to solve for  sin 30/2 and sin 105, then we solve. 
 
or Sin 30/2  and Sin 105 as well. 
with your calculator use sin= 30=.5  and use sin 105º a divide by 1.5 on both sides    1.5= A /sin 105º * 1.5   answer would be 3.86.  a is = to 3.86 (Not the answer)
 
        
             
        
        
        
Answer:
5/6
Step-by-step explanation:
the reciprocal of any fraction is the fraction flipped
 
        
                    
             
        
        
        
Divide both sides of the inequality by 4 but don’t flip the symbol. 
You only flip the inequality symbol if you divide by a negative number. 
If you’re solving for x (which you are), you want to get x by itself. The only way to do that is to divide by 4.
        
             
        
        
        
.3 * 18 = 5.4. 18-5.4 = 12.6$
Or
.7 * 18 = 12.6$
        
             
        
        
        
Answer:
i beleive it is c 
Step-by-step explanation:
not completly sure