From a Rectangular Piece of Cardboard Having Dimensions W =

question 43

Multiple Choice

From a rectangular piece of cardboard having dimensions W = 18 and L = 40 an open box is to be made by cutting out identical squares of area x ² from each corner and turning up the sides (see Illustration) . Find all positive values of x such that the volume of the box V ( x ) > 0. Include only allowable values of x in your answer.

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Definitions:

Contact Comfort

The physical and emotional comfort that an individual derives from being in physical contact with another.

Attachment

A deep and enduring emotional bond that connects one person to another across time and space.

Erikson and Bowlby

Refer to psychologists Erik Erikson, known for his theory on psychosocial development, and John Bowlby, known for his work on attachment theory.

Primary Caregiver

This term denotes the main person responsible for providing care and meeting the needs of a child or dependent individual.