Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

The formula that describes acceptable ball bearings is: $|x-3|\leq 0.01$ We plug in the given radius values and if the inequality proves true, then the ball bearing is acceptable. a. Since $|2.999-3|=0.001\le 0.01$, then the ball bearing of radius $x = 2.999$ is acceptable. a. Since $|2.89 -3|=0.11\gt 0.01$, then the ball bearing of radius $x = 2.89$ is not acceptable.