
Numerical, Graphical, and Analytic Analysis An exercise room consists of a rectangle with a semicircle on each end. A 200-meter running track runs around the outside of the room.
(a) Draw a figure to represent the problem. Let x and y represent the length and width of the rectangle, respectively.
(b) Analytically complete six rows of a table such as the one below. (The first two rows are shown.) Use the table to guess the maximum area of the rectangular region.
Length, x |
Width, y |
Area, x y |
10 |
|
|
20 |
|
|
(c) Write the area A of the rectangular region as a function of x.
(d) Use calculus to find the critical number of the function in part (c). Then find the maximum area and the dimensions that yield the maximum area.
(e) Use a graphing utility to graph the function in part (c) and verify the maximum area from the graph.

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Chapter 3 Solutions
Student Solutions Manual for Larson/Edwards' Calculus of a Single Variable, 11th
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- use Corollary 12.6.2 and 12.6.3 to derive 12.6.4,12.6.5, 12.6.6 and 12.6.7arrow_forwardExplain the focus and reasons for establishment of 12.5.1(lim(n->infinite) and sigma of k=0 to n)arrow_forwardExplain the focus and reasons for establishment of 12.5.3 about alternating series. and explain the reason why (sigma k=1 to infinite)(-1)k+1/k = 1/1 - 1/2 + 1/3 - 1/4 + .... converges.arrow_forward
- Explain the key points and reasons for the establishment of 12.3.2(integral Test)arrow_forwardUse identity (1+x+x2+...+xn)*(1-x)=1-xn+1 to derive the result of 12.2.2. Please notice that identity doesn't work when x=1.arrow_forwardExplain the key points and reasons for the establishment of 11.3.2(integral Test)arrow_forward
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