Question #247512

A 10ft long horizontal through has ends in the shape of equilateral triangles. The sides of the triangle are 6ft in length. If water is being poured inside the through, find a mathematical model that expresses the volume of the water as a function of its depth


1
Expert's answer
2021-10-12T01:53:49-0400

Volume=cross sectional area*length

C.S.A=12bh=12bbSin60°\frac{1}{2}bh=\frac{1}{2}b*bSin60°

With l as length,

Volume,V=12bbSin60°l\frac{1}{2}b*bSin60°*l

Mathematical model will have a partial derivative with respect to l

lb(V)\frac{\partial l}{\partial b}(V)

=lb(12bbSin60°l)\frac{\partial l}{\partial b}(\frac{1}{2}b*bSin60°*l)

=14bbSin60°l2=\frac{1}{4}b*bSin60°*l^{2}


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