Answer:
The number of watches must he repair to have the lowest cost is 54.
Step-by-step explanation:
The cost of operating Bob's shop is given by

Differentiate the given function with respect to x.

... (1)
Equate C'(x) equal to 0, to find the critical point.


Divide both sides by 4.


Differentiate C'(x) with respect to x.

C''(x)>0, it means the cost of operating is minimum at x=54.
Therefore the number of watches must he repair to have the lowest cost is 54.
Answer:
there has to be a graph or table right?
Step-by-step explanation:
I think that it is point. A point is very precise
Answer:
You divide each fraction by the highest multiple.
4/16 can be divided by 4 to get 1/4
12/18 can be divided by 6 to get 2/3
4/10 can be divided by 2 to get 2/5
16/20 can be divided by 4 to get 4/5
Step-by-step explanation:
hope this helps