
has critical points where the partial derivatives simultaneously vanish:




So we have three critical points to consider,

,

, and

.
The function has Hessian

At the critical points, we have


which means there is a minimum at (0, 0) of

;

which means

is a saddle point; and

which means

is also a saddle point.
Answer:
-2(3x-10)=15
-6x+20=15
-6x=-5
x=5/6
Step-by-step explanation:
Answer:
60
Step-by-step explanation:
15x3=45
5x3=15
15+45=60
1-D
2-C
3-?
4- A
5- B
Give me a second to work on number three. I'll respond ASAP