Mickey borrowed $75.00 from his grandparents to purchase a season pass to a theme park. After saving up his allowance for one mo
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Answer:
Depth = 3 inches
Maximum cross-sectional area = 18 inches²
Step-by-step explanation:
Let 'D' be the depth of the gutter and 'W' be the width of the gutter, the cross-sectional area as function of depth, A(D), is:
The depth for which the derivate of the area function is zero is the depth that yields the maximum cross-sectional area:
The cross-sectional area for D = 3 is: