#### Answer

$\left\{ 0, -15, \dfrac{30}{3} \right\}$

#### Work Step by Step

$\bf{\text{Solution Outline:}}$
Use the definition of integers to identify the integers in the given list: $
\dfrac{9}{10},0,-15,\sqrt{2},\dfrac{30}{3}
.$
$\bf{\text{Solution Details:}}$
Integers include the numbers, $\{...,-2,-1,0,1,2,...\}
.$ Hence, the integers in the given list are $
\left\{ 0, -15, \dfrac{30}{3} \right\}
.$