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25-08-2014
Mathematics

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A spherical water tank holds 15000ft^3. What is the diameter of the tank? Use V=pie/6*d^3

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25-08-2014

[tex]V=\frac{ \pi }{6d^3}\\\\ Substitute\ into\ formula\ V=15000ft^3\\\\ 15000=\frac{ \pi }{6d^3}\ \ |*6d^3\\\\90000d^3= \pi \ \ |:90000\\\\ d^3=\frac{ \pi }{90000}\ \ \sqrt[3]{}\\\\ d\approx0,07ft \\\\Diamater\ is\ equal\ to\ 0,07ft.[/tex]

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