A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 12 in. by 20 in. by cutting out equal squares of side x at each corner and then folding up the sides as in figure (d) on the last page. We want to find how to choose x so that the box has the largest possible volume. (a) Express the volume V of the box as a function x. (hint: first find the depth of the box and the length of each side of the bottom of the box) V(x) = (b) Compute V'(x) and complete the chart below (put the same amount of information than we did in class!) V'(x) V(x) (c) What should be x for the box to have the largest possible volume? (Don't forget the units)

Calculus: Early Transcendentals
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ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 12 in. by 20 in. by cutting out equal squares of side \(x\) at each corner and then folding up the sides as in figure (d) on the last page. We want to find how to choose \(x\) so that the box has the largest possible volume.

(a) Express the volume \(V\) of the box as a function \(x\). (hint: first find the depth of the box and the length of each side of the bottom of the box)

\[
V(x) = 
\]

(b) Compute \(V'(x)\) and complete the chart below (put the same amount of information that we did in class!)

\[
\begin{array}{c|c|c}
x & 0 & 6 \\
\hline
V'(x) & & \\
\hline
V(x) & & \\
\end{array}
\]

(c) What should be \(x\) for the box to have the largest possible volume? (Don't forget the units)
Transcribed Image Text:A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 12 in. by 20 in. by cutting out equal squares of side \(x\) at each corner and then folding up the sides as in figure (d) on the last page. We want to find how to choose \(x\) so that the box has the largest possible volume. (a) Express the volume \(V\) of the box as a function \(x\). (hint: first find the depth of the box and the length of each side of the bottom of the box) \[ V(x) = \] (b) Compute \(V'(x)\) and complete the chart below (put the same amount of information that we did in class!) \[ \begin{array}{c|c|c} x & 0 & 6 \\ \hline V'(x) & & \\ \hline V(x) & & \\ \end{array} \] (c) What should be \(x\) for the box to have the largest possible volume? (Don't forget the units)
**Figure (a):** 

This diagram illustrates a rectangular sheet and a corresponding 3D box representation. The sheet has dimensions 20 units in length and 12 units in width. There are square sections cut out from each corner, each with a side length denoted as 'x'. These cut-out sections suggest the intention to form a box by folding the remaining flaps upwards.

- **2D Representation:**
  - The initial shape is a rectangle with dimensions 20 by 12.
  - Four squares are removed from each corner. The side length of each square is 'x'.
  
- **3D Representation:**
  - The right side of the figure shows the transformed box once the four sides are folded up after cutting out the squares.
  - This visualization helps in understanding how the original sheet forms a box with open top by folding along the lines where the squares were cut.

This type of diagram is typical in studies of geometry and spatial reasoning, where understanding the relationship between 2D and 3D shapes is crucial.
Transcribed Image Text:**Figure (a):** This diagram illustrates a rectangular sheet and a corresponding 3D box representation. The sheet has dimensions 20 units in length and 12 units in width. There are square sections cut out from each corner, each with a side length denoted as 'x'. These cut-out sections suggest the intention to form a box by folding the remaining flaps upwards. - **2D Representation:** - The initial shape is a rectangle with dimensions 20 by 12. - Four squares are removed from each corner. The side length of each square is 'x'. - **3D Representation:** - The right side of the figure shows the transformed box once the four sides are folded up after cutting out the squares. - This visualization helps in understanding how the original sheet forms a box with open top by folding along the lines where the squares were cut. This type of diagram is typical in studies of geometry and spatial reasoning, where understanding the relationship between 2D and 3D shapes is crucial.
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