. Find an equation for the surface area of the rectangular box. =(x, y) dy = . If the surface area of the rectangular box is 54 square feet, find when dx ly 3 feet and y=

Calculus: Early Transcendentals
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Chapter1: Functions And Models
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Consider a closed rectangular box with a square base with side and height y.
a. Find an equation for the surface area of the rectangular box.
S(x, y)
dy
b. If the surface area of the rectangular box is 54 square feet, find
dx
dy
dx
||
when I = 3 feet and y = 3 feet.
Transcribed Image Text:Consider a closed rectangular box with a square base with side and height y. a. Find an equation for the surface area of the rectangular box. S(x, y) dy b. If the surface area of the rectangular box is 54 square feet, find dx dy dx || when I = 3 feet and y = 3 feet.
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