(a)
To determine : An inequality that describes the region covered by the radar if the fishing boat is anchored at the origin.
The required inequality is
Given information :
A fishing boat's radar has a range of
Explanation :
Draw the figure on the basis of the given information.
Therefore, the required inequality is
(b)
To calculate : The second boat is in range of the radar or not.
The second boat is not in radar.
Given information :
A fishing boat's radar has a range of
Calculation :
The coordinates of the fishing boat anchored at the origin is
The inequality that describes the region covered by the radar if the fishing boat is anchored at the origin is
The distance of the second boat from the fishing boat is,
The distance of the second boat from the fishing boat is more than
Therefore, the second boat is not in radar.
(c)
To calculate : The distance for which the third boat will be in radar range of the fishing boat.
The third boat will be in radar for
Given information :
A fishing boat's radar has a range of
Calculation :
The coordinates of the fishing boat anchored at the origin is
The inequality that describes the region covered by the radar if the fishing boat is anchored at the origin is
The distance of the third boat from the fishing boat is,
The distance of the third boat from the fishing boat is less than
Therefore, the third boat will be in radar for
Chapter 8 Solutions
Holt Mcdougal Larson Algebra 2: Student Edition 2012
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