Answer:
The length of rectangular is increasing at a rate 0.5714 meters per hour.
Step-by-step explanation:
We are given the following in the question:
Initial dimensions of rectangular box:
Length,l = 10 m
Width,w = 7 m

We have to find the rate of increase of length.
Area of rectangle = 

Differentiating we get,

Putting values, we get,

Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.
 
        
             
        
        
        
34.1754 is the answer because if 50 km an hour is 31.0685 just add the other km's
        
                    
             
        
        
        
U technecally wrote the answer
        
                    
             
        
        
        
Answer:
c the ratio of the measure of arc QR and the circle
Step-by-step explanation:
i just took the quiz 
hope this helps (: