Find the absolute maximum and minimum of the function f(x, y) = x
2 + y
2 + x
2y + 4 on
the set D = {(x, y)| | x |≤ 1, | y |≤ 1}.

i dont know

step-by-step explanation:

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c

1/2(2*4)=6 $$- agahajakanajak