Answer
$|k-10| \le 0.0002$
Work Step by Step
RECALL:
$|a-b|$ represents the distance between the real numbers $a$ and $b$.
Thus, the distance between $k$ and $10$ is represented by $|k-10|$.
Since the distance is within (less than or equal to) $0.0002$ units, then the required inequality is:
$|k-10| \le 0.0002$