The law of cosines is used for calculating one side of the triangle if the angle opposite to that side is given as well as the other sides. For this problem, we are given angle B. Therefore, the correct answer among the choices given is option 1 where a is equal to 5 and c is equal to 3.
        
                    
             
        
        
        
Step-by-step explanation:
hey.....
how are uh
 
        
             
        
        
        
Subtract 4 from both sides of the equation. 
y=-4-2x+2
add -4 and +2.
the answer is 
y=-2x-2
        
             
        
        
        
Answer:
24mm
Step-by-step explanation:
since it's a similar triangle, we solve;
EH/EG=DH/DG
EH=56mm;
EG=44.8mm;
DH=35mm;
DG=X+4.
Fix them,
56/44.8=35/x+4
cross multiply
56(x+4)=35×44.8
56x+224=1,568
collect the like term
56x=1,344
divide via by 56
56x/56=1344/56
x=24mm
Check/ verify
EH/EG=DH/DG
56/44.8=35/24+4
56/44.8=35/28
CROSS MULTIPLY OVER THE EQUAL SIGN. 
56×28=35×44.8
1,568=1,568
THAT'S CORRECT.
 
        
             
        
        
        
Small problem....
There is no graph!
ill be happy to solve this if i saw a graph