Answer:
Step-by-step explanation:
both the length and the width of a square is the same measurement. 
so if both measured to "x" then that means one side increase +7.
so one side is x + 7
and the other side decreased -4
so the other side is x - 4
area of square = length x width or just one of the sides to the power of 2
so (x+7) * (x-4) = Area
x^2 + 3x - 21 = area 
 
        
                    
             
        
        
        
1) find the corresponding y values for when x = 0 and when x = 4,
when x = 0, y = 4
when x = 4, y = 4
the coordinates are (0,4) and (4,4)
2) to calculate the average rate of change, find the slope of the two points:
(0,4) (4,4)
(change in y) 4 - 4 = 0
(change in x) 4 - 0 = 4
0/4 = 0
the average rate of change is 0!
        
             
        
        
        
Answer:
volume of tank a=65.63
volume of tank b=61.88
Step-by-step explanation:
3.5*3.75*5=65.63
3*3.75*5.5=61.88
brainliest plz
 
        
                    
             
        
        
        
Answer:
5
Step-by-step explanation:
3x5x7x9=945
9 is in the hundreds place
4 is in the tens 
which means 5 must be in the ones
 
        
                    
             
        
        
        
Answer:
ok, what's the question?
Step-by-step explanation: