\[\boxed{\text{17\ (17).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[\textbf{а)}\ f(x) = 1,5 - 3x\]
\[D(f) = ( - \infty; + \infty);\ \ \ \]
\[E(f) = ( - \infty; + \infty).\]
\[\textbf{б)}\ f(x) = 4,5x\]
\[D(f) = ( - \infty; + \infty);\]
\[E(f) = ( - \infty; + \infty).\]
\[\textbf{в)}\ f(x) = \frac{10}{x}\]
\[D(f) = ( - \infty;0) \cup (0; + \infty);\]
\[E(f) = ( - \infty;0) \cup (0; + \infty).\]
\[\textbf{г)}\ f(x) = - \frac{1}{x}\]
\[D(f) = ( - \infty;0) \cup (0; + \infty);\]
\[E(f) = ( - \infty;0) \cup (0; + \infty).\]
\[\boxed{\text{17.\ }\text{ОК\ ГДЗ\ -\ домашка\ на\ 5}}\]
\[Верные\ утверждения:\]
\[- 18 \in Z;\]
\[205 \in Q;\]
\[\sqrt{3} \notin N;\]
\[0,(8) \in R;\]
\[2 + \sqrt{2} \in R;\]
\[3\frac{1}{4} + 0,25 \in R;\]
\[4 + \sqrt{4} \in Z.\]