I hope this helps you 
x =4 
f (4)= 4.4+7 = 16+7=23
f (4)= 4.4-7=16-7=9
        
             
        
        
        
Answer:
3 and 2 r equivalent i belive
 
        
             
        
        
        
Answer:
30.80
Step-by-step explanation:
$370/12ft^2
 hope this is helpful ! stay safe, God Bless you and your family...! 
 
        
             
        
        
        
Answer:
Therefore the width is 25 feet for getting maximum area.
The maximum area of the rectangle is 625 square feet.
Therefore the range is 0≤A≤625.
Step-by-step explanation:
Given function is
A = - x²+50x
We know that ,
If y = ax²+bx+c
For the maximum 
Here a = -1 , b= 50 and c=0
Therefore the width 
Therefore the width is 25 feet for getting maximum area.
The maximum area =[ -(25)²+50.25] square feet
                                  = 625 square feet
The area can not be negative and maximum area is 625 square feet.
Therefore the range is 0≤A≤625.
 
        
             
        
        
        
Answer:
5
Step-by-step explanation:
90-36=54
54-24=30