Answer: the first 
Step-by-step explanation:
becuase its only right to know you can look it up to
 
        
             
        
        
        
        -37842
      -------------
         2,376
Then, round 2,376 to the nearest thousands
2,376 -> 2,000
 
        
                    
             
        
        
        
<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>
        
             
        
        
        
f ( 7 ) = 2.4 ft
Step-by-step explanation:
Solution:-
- This is modeled using a geometric sequence function with initial height from which ball is dropped hi = 18 feet, and a decrease in height by 25% after each successive bounce :
                       f ( x ) = 18 (0.75)^x
Where,   x e [ 0 , ∞ ) : The number of bounces.
              f (x) : The maximum height after xth bounce.
- The maximum height reached by the ball after its 7th bounce. So, x = 7:
                        f ( 7 ) = 18 (0.75)^7
                        f ( 7 ) = 2.4027 ft
- To the nearest tenth:
                      f ( 7 ) = 2.4 ft
 
        
             
        
        
        
I found this, I hope it works and if it doesn’t then i’ll try again!