Question 1120501
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volume of wood, V, obtained from a tree varies jointly as the height, h, and the square of the girth (the distance around the tree trunk), g. if the volume is 38.4ft^3 when the height is 30 ft and the girth is 4ft, ...
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{{{V=k*h*g^2}}}

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{{{k=V/(hg^2)}}}

{{{k=38.4/(30*4^2)}}}

{{{k=0.08}}}

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{{{highlight_green(V=0.08*h*g^2)}}}  OR {{{highlight_green((2/25)hg^2)}}}


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what is the volume when the height is 50 ft and the girth is 7 ft? 
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