<u>Answer:</u>
No, incorrect. It should be -13. 56 unit
<u>Step-by-step explanation:.</u>
I am overcharged  4.52 unit on my cell phone 3 months in a row.
So, net amount I am overcharged =  unit
 unit
                                                            = 13.56 unit
So, in the next bill there should be an adjustment of - 13.56 unit. But, here it is given - 13.28 unit only. So, this is incorrect. 
 
        
             
        
        
        
Yes, the table represents a function.
None of the independent (x) values are repeated and each one has a corresponding (y) value. 
If you had a repeated (x) value in the table, it would not represent a function.
        
                    
             
        
        
        
Answer:
600 seats
Step-by-step explanation:
We know there is 120 seats on a balcony and that is    of the total seats, we want to find the total number of seats so,
   of the total seats, we want to find the total number of seats so,
120 seats    =      
We know that a whole fraction sums to 1 so for example   
120 seats    =      
Multiply  both sides to make it a whole fraction
600 seats =     
So if there is 120 seats and that number is only     of the total number of seats then the total number of seats is 600
    of the total number of seats then the total number of seats is 600
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
use the formula { a couple of times} cos 2 Θ = 2 cos ² Θ - 1 = 1 - 2 sin ² Θ....your answer will likely have a cos  2x , a cos 4x , and a cos 6x in it.....note : cos ² Θ - sin ²Φ = cos ( Θ + Φ) cos (Θ - Φ) will also be needed for appropriate choices of Θ & Φ in terms of x
 
        
             
        
        
        
Answer:
c) 1
Step-by-step explanation:
=> ax+y = 5
<u><em>Putting x =2, y =3</em></u>
=> a(2)+3 = 5
=> 2a = 5-3
=> 2a = 2
<em>Dividing both sides by 2</em>
=> a = 1