Answer:
i think A
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Let assume that Earth is a sphere, the following trigonometric diagram is constructed and presented below. The central angle is given by this inverse trigonometric equation:



The distance of the portion of Earth that can be seen is:


 
        
             
        
        
        
Answer:
2
Step-by-step explanation:
(4)(−2)+10
=−8+10
=2
 
        
                    
             
        
        
        
The option are missing in the question. The options are :
A.  P = 2, a = 1
B.  
C. 
D. P = 2, a = 3
Solution :
The given function is 
So for the function to be an exponential growth, a should be a positive number and should be larger than 1. If it less than 1 or a fraction, then it is a decay. If the value of a is negative, then it would be between positive and negative alternately.
When the four option being substituted in the function, we get
A). It is a constant function since 
B). Here, the value of a is a fraction which is less than 1, so it is a decay function. 
C). It is a constant function since the value of a is 1.
D). Here a = 3. So substituting, as the value of x increases by 1, the value of the function, f(x) increases by 3 times. 
   
Therefore, option (D). represents an exponential function.
 
        
             
        
        
        
Answer:
10
Step-by-step explanation:
To find 20% of 50 you need to times 20 with 50 and divide by 100.
20×50÷100
=10