Concept explainers
(a)
To draw: Diagram to illustrate the situation.
(a)
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Explanation of Solution
Given information:
Page width is x inches
Page length is y inches
Border of page is 2 inches deep
Page contains 30 square inches of print
Diagram:
(b)
To prove: Total area of page is
(b)
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Explanation of Solution
Given information:
Page width is x inches
Page length is y inches
Border of page is 2 inches deep
Page contains 30 square inches of print
Formula used:
Proof:
As the width of border is 2 inches so the length and width are
Total area of page:
So the area of pattern is:
Multiplying both the sides by x
(c)
To calculate: Domain of the function.
(c)
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Answer to Problem 140CR
Domain of function is
Explanation of Solution
Given information:
Calculation:
Domain of the function :
As area should not be negative,
And denominator should not be zero
Thus the domain is
(d)
To graph:
(d)
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Explanation of Solution
Given information:
Graph:
By the graph the minimum page size should be
Interpretation: It is a discontinuous graph.
Chapter 2 Solutions
EP PRECALC.GRAPHING APPR.-WEBASSIGN-1YR
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