Suppose f(x, y)=x^2+y^2â2xâ4y+3 a. How many critical points does f have in R2?
b. If there is a local minimum, what is the value of the discriminant D at that point? If there is none, type N.
c. If there is a local maximum, what is the value of the discriminant D at that point? If there is none, type N.
d. If there is a saddle point, what is the value of the discriminant D at that point? If there is none, type N.
e. What is the maximum value of f on R2? If there is none, type N.
f. What is the minimum value of f on R2? If there is none, type N.

b) the dogs need to shift their focus to human scent.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

i belive those are the ones that are under 90 degreese.

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times