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Axia College Material
Appendix E
Radicals
Application Practice
Answer the following questions. Use Equation Editor to write mathematical expressions and equations.
First, save this file to your hard drive by selecting
Save As
from the
File
menu. Click the white space
below each question to maintain proper formatting.
Hint for this assignment: Pay attention to the units of measure. You may have to convert from feet to
miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions.
1. Many people know that the weight of an object varies on different planets, but did you know that
the weight of an object on earth also varies according to the elevation of the object? In particular,
the weight of an object follows this equation:
2

=
Cr
w
, where C is a constant, and r is the
distance that the object is from the center of the earth.
a. Solve the equation
2

=
Cr
w
for r.
b. Suppose that an object is 100 pounds when it is at sea level. Find the value of C that
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 Spring '10
 UNSURE
 Math, Radicals, Equations

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