Answer:
7.5
Step-by-step explanation:
5/6=x/9
cross multiply
6x=45
x=45/6
x=7 3/6 = 7 1/2 = 7.5
 
        
             
        
        
        
5 and 6. square of 5 is 25 and square of 6 is 36. must be between 5 and 6
        
             
        
        
        
Answer:
It's 81
Step-by-step explanation:
2^5 is 2*2*2*2*2 or 32
7^2 is 7*7 or 49
Add them together... 81
 
        
             
        
        
        
Answer:
a) 
b) 
Step-by-step explanation:
a) Let the required polynomial be p(x).
We have the relation,  + p(x) = 18
 + p(x) = 18
i.e. p(x) = 18 
i.e. p(x) = 
b) Let the required polynomial be q(x).
We have the relation,  + q(x) = 0
 + q(x) = 0
i.e. q(x) = 0 
i.e. q(x) = 
 
        
                    
             
        
        
        
Step-by-step explanation:
see the photo for the answer