A rectangular building with length L, width W and height H has a surface area given by S=2HW+2LW+2LH The city zoning commission specifies that for all buildings on this particular street the following dimensions must hold L=2W.  At the last minute, the building’s owner asks the architects to increase the height of the building; unfortunately the builder have already been given exactly 30,000,000 sqft of siding. Solve the equation for H and create a function H=f(W) which gives the allowable height for a given width.   The builder requests a width of 200, use the function H=f(W) to determine the height and length of the building. Under what conditions will H=f(W) be negative?  A negative length in this context does not make any physical sense. Create a domain for the function for which (1) all members of the domain are positive (2) all members of the range are positive and not equal to 0 (3) no division by 0.

Algebra: Structure And Method, Book 1
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ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
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A rectangular building with length L, width W and height H has a surface area given by S=2HW+2LW+2LH

The city zoning commission specifies that for all buildings on this particular street the following dimensions must hold L=2W.  At the last minute, the building’s owner asks the architects to increase the height of the building; unfortunately the builder have already been given exactly 30,000,000 sqft of siding.

Solve the equation for H and create a function H=f(W) which gives the allowable height for a given width.  

The builder requests a width of 200, use the function H=f(W) to determine the height and length of the building.

Under what conditions will H=f(W) be negative? 

A negative length in this context does not make any physical sense. Create a domain for the function for which (1) all members of the domain are positive (2) all members of the range are positive and not equal to 0 (3) no division by 0.

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