In the Vicinity of a Bonfire the Temperature T In ${ } ^ { 0 } C$

question 86

Essay

In the vicinity of a bonfire the temperature T in ${ } ^ { 0 } C$
at a distance of x meters from the center of the fire was given by $T = \frac { 800,000 } { x ^ { 2 } + 400 }$
. At what range of distances from the fire's center was the temperature less than 400 ${ } ^ { 0 } C$
?

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Definitions:

Reserved Word

A word that is part of the syntax of a programming language, reserved for special use and cannot be used as an identifier.

Class Math

A class in Java that provides methods for performing basic numeric operations such as exponential, logarithm, square root, and trigonometry.

Java.math

A Java package that contains classes for performing arithmetic operations and processing large numbers.

Reference Variables

Variables that hold the address of an object in memory, enabling indirect access to that object.