Solution:- Given that the total revenue function
,where x is the number of rooms filled
Now, differentiating the function w.r.t. x,we get

To find critical points ,Put 

That will be A bc B is much longer than A
Answer:
252 ft squared
Step-by-step explanation:
Since the radius of the circle is 3, then the diameter would be 6
Split the rectangle into 3
The way I split the shape is like the picture attached (with the blue lines).
Find the area of each rectangle which can be easily found by using the diameter of each circle (picture attached with black lines)
6*18=108
6*12=72
6*12=72
Add the areas of each rectangle.
108+72+72=252
Answer:
x=5.657 y=5.657
Step-by-step explanation: