For the following exercises, complete each task. 193. Show that f ( x , y ) = x 2 + 3 y is differentiable at every point. In other words, show = fix + i. v + v) — f(x. y) = f x + f Y + e1 -‘ + &‘2 Y. where both E1 and F2 approach zero as iv. y) approaches (0. 0).
For the following exercises, complete each task. 193. Show that f ( x , y ) = x 2 + 3 y is differentiable at every point. In other words, show = fix + i. v + v) — f(x. y) = f x + f Y + e1 -‘ + &‘2 Y. where both E1 and F2 approach zero as iv. y) approaches (0. 0).
PLEASE SOLVE STEP BY STEP WITHOUT ARTIFICIAL INTELLIGENCE OR CHATGPT
SOLVE BY HAND STEP BY STEP
4.- A beer at an unknown temperature is introduced into a refrigerator that has a constant temperature of 1°C. After 20 minutes, the temperature of the beer is 10°C, and after 40 minutes, the temperature of the beer is 6°C.
a) Determine the temperature at which the beer was placed inside the refrigerator.b) How long will it take for the beer to reach 2°C?
PLEASE SOLVE STEP BY STEP WITHOUT ARTIFICIAL INTELLIGENCE OR CHATGPT
SOLVE BY HAND STEP BY STEP
5.- It is known that the population of a certain community increases at a rate proportional to the number of people at any given moment. If the population doubled in 5 years:
a) How long will it take to triple?b) How long will it take to quadruple?
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
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