Answer:
23 kWh
Step-by-step explanation:
I think this is the answer sorry about earlier 
this time I've tried my best 
and if its wrong.......well its not......so....yea 
 
        
             
        
        
        
X= 24 because 26/13 is 2 and 48/24 is also 2
        
                    
             
        
        
        
Answer:
Reference angle is  and tan
 and tan = -1
 = -1
Step-by-step explanation:
 lies in the 4th quadrant
 lies in the 4th quadrant 
and reference angle for angle in 4th quadrant is 2π - x , where x is the angle given. 
and reference angle for  is
 is  
2π- =
 = 
and tan = -tan
 = -tan  =  -1
=  -1 
Since tan is negative in 4th quadrant ,therefore value will be  negative for the given angle.
 
        
             
        
        
        
Answer:
Option D. -1 and 0
Step-by-step explanation:
 
        
                    
             
        
        
        
The correct answer is C) (5m^50 - 11n^8) (5m^50 + 11n^8)
We can tell this because of the rule regarding factoring the difference of two perfect squares. When we have two squares being multiplied, we can use the following rule.
a^2 - b^2 = (a - b)(a + b)
In this case, or first term is 25m^100. So we can solve that by setting it equal to a^2.
a^2 = 25m^100 -----> take the square root of both sides
a = 5m^50
Then we can do the same for the b term. 
b^2 = 121n^16 ----->take the square root of both sides
b = 11n^8
Now we can use both in the equation already given
 (a - b)(a + b)
 (5m^50 - 11n^16)(5m^50 + 11n^16)