Beginning & Intermediate Algebra
Which symbol denotes the intersection of sets A\(\text{A}\) and B\(\text{B}\)?
Given A={2,4,6,8}A={\(\left\[\lbrace\)2,4,6,8\(\right\]\rbrace\)} and B={3,4,5,6}B={\(\left\[\lbrace\)3,4,5,6\(\right\]\rbrace\)}, what is A∩BA\(\cap\) B?
Solve −34x≤9-\(\frac\)34x\(\le\)9 and express the answer in inequality form and interval notation.
Solve the system {2(x−1)<6x2−3≥−1\(\begin{cases}\)2\(\left\)(x-1\(\right\))<6\\ \(\frac{x}{2}\)-3\(\ge\)-1\(\end{cases}\).
A theater allows patrons who are either teens (ages from 13 inclusive up to, but not including, 18) or seniors (ages 65 and older). Which interval notation correctly expresses the allowed ages? (Consider ages as real numbers.)
