Concept explainers
a.
To write: an equation for the sphere, the center of the bearing ball corresponds to the origin of the three-dimensional
a.
Answer to Problem 90E
The equation of the sphere is,
Explanation of Solution
Given information: Ball bearings allow machinery to move at extremely high speeds.
and carry large loads. A bearing ball is in the shape of a sphere with a volume of
Formula used:
The standard equation of a sphere with center ( h, k, j ) and radius r is given by:
Calculation:
Let r is the radius of the sphere (ball bearing), and the center of the bearing ball corresponds to the origin of the three-dimensional coordinate system.
Therefore, ( h, k, j ) = (0, 0, 0).
Hence, the equation of the sphere:
Therefore, the equation of the sphere is,
b.
To graph: the sphere using the three-dimensional graphing utility.
b.
Explanation of Solution
Given information: The equation of the sphere is,
Calculation:
The graph of the sphere using the three-dimensional graphing utility is shown below.
Chapter 10 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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