Lol I just needed help with this kinda stuff... 
I’m not very caught up with this stuff I feel your pain I’m very sorry if I’m wrong =/ 
10?
 
        
             
        
        
        
Answer:
Therefore 'x' is equal to 65.4°
Step-by-step explanation:
In Right Angle Triangle ABC
∠ B = 90°
AC = Hypotenuse = 12 
CB = Adjacent Side = 5
To Find:
∠ C = x
Solution:
In Right Angle Triangle ABC Cosine Identity we have

Substituting the values we get


Therefore 'x' is equal to 65.4°
 
        
             
        
        
        
Answer:
2a^2
Step-by-step explanation:
 
        
             
        
        
        
Answer:
$13.92
Step-by-step explanation:
$212.90-198.98