Answer:
Therefore the rate change of height is   m/s.
 m/s.
Step-by-step explanation:
Given that a vertical cylinder is leaking water at rate of 4 m³/s.
It means the rate change of volume is 4 m³/s.

The radius of the cylinder remains constant with respect to time, but the height of the water label changes with respect to time.
 The height of the cylinder be h(say).
The volume of a cylinder is 
                                                  

Differentiating with respect to t.

Putting the value 



The rate change of height does not depend on the height.
Therefore the rate change of height is   m/s.
 m/s.
 
 
        
             
        
        
        
Answer:
<em>21500</em>
Step-by-step explanation:
21500 people would have to see the movie to recuperate their losses.
 
        
             
        
        
        
Use the graphing calculator to plot the line y=ax+b for the given data. On the attached diagram you can see green points that are ordered pairs weight-height and black line is regression line.
As you can see a≈0.1 and b≈50.9.
The equation of regression line is y=0.1x+50.9.
 
        
             
        
        
        
I will try to answer the most I can, but I also have some homework to finish before tomorrriw.