A Rectangular Box Is to Have a Square Base and a Volume

question 17

Short Answer

A rectangular box is to have a square base and a volume of 20 ft³. The material for the base costs , the material for the sides costs , and the material for the top costs . Letting x denote the length of one side of the base, find a function in the variable x giving the cost of constructing the box. ​

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Definitions:

Negotiable Instrument

A signed document containing an unconditional promise or order to pay a specified sum of money to a designated person or to the bearer of the document.

Maker

In terms of financial instruments like checks or promissory notes, the maker is the party that promises to pay a certain amount of money.

Bearer

A person who is in possession of a negotiable instrument that is payable to the “bearer” or “cash” or that has been indorsed in blank.

Indorses

To sign the back of a financial document, transferring interest or rights to another party.