

We have critical points whenever both partial derivatives vanish:



The Hessian is


At (0,0), we have

, so (0,0) is a saddle point.
At (-1, -1), we have

and

, so (-1, -1) is a local minimum.
At (1, 1), we have

and

, so (1, 1) is also a local minimum.
Answer:
3/5
Step-by-step explanation:
40% play kickball on weekends which would be 40/100=2/5, and the other 60% are the ones who don't play kickball so 60/100=6/10=3/5.
Answer:
18
Step-by-step explanation:
plug in
Radius of the pan = 16cm
Formula for area of circle:

Find the area of the pan:

Answer:
Its option b) and d) any one of them
Step-by-step explanation: