Answer:
9 cm
Step-by-step explanation:
hope it helps<3
 
        
             
        
        
        
Answer:
x = 99°
y = 91°
Step-by-step explanation:
For Cyclic quadrilateral, the sum of the opposite angles = 180°
Let's find x :-
x + 81° = 180° 
x = 180 - 81
x = 99°
Let's find y :-
y + 89° = 180°
y = 180 - 89
y = 91°
Hope this helps you !
 
        
             
        
        
        
Answer:
(-5, 3)
Step-by-step explanation:
Elimination seems like the best method to use here.
x+y=-2
x-y=-8
---------
2x=-10
Divide everything by two
x=-5
Now plug it back into one of the original equations,
-5+y=-2
Add 5 to everything
y=3
 
        
                    
             
        
        
        
Answer:
B) y=10
Step-by-step explanation:
10+10=20
20*2/5=8
 
        
                    
             
        
        
        
It A i just took the quiz and got it but fail