Chapter 3 - Solving Inequalities - 3-1 Inequalities and Their Graphs - Practice and Problem-Solving Exercises - Page 168: 15

a) yes b) no c) no

a) $\frac{6-0.5}{0.5}\overset?\geq11$ $\ \ \ \ \frac{5.5}{0.5}\overset?\geq11$ $\ \ \ \ 11\geq11\checkmark$ b) $\frac{6-2}{2}\overset?\geq11$ $\ \ \ \ \frac{4}{2}\overset?\geq11$ $\ \ \ \ 2\ /\!\!\!\!\!\geq11\ \ X$ c) $\frac{6-4}{4}\overset?\geq11$ $\ \ \ \ \frac{2}{4}\overset?\geq11$ $\ \ \ \ \frac{1}{2}\ /\!\!\!\!\!\geq11\ \ X$