The modulus of $ z $ is:
$$ |z| = 5.4572$$To find modulus of a complex number $ z = a + bi $ we use formula:
$$ |z| = \sqrt{a^2 + b^2} $$In this example we have $ a = -0.6032 $ and $ b = -5.4238 $ so:
$$ \begin{aligned}|z| &= \sqrt{ (-0.6032)^2 + (-5.4238)^2 } \\[1 em]|z| &= \sqrt{ 0.3639 + 29.4175 } \\[1 em]|z| &= \sqrt{ 29.7814 } \\[1 em]|z| &= 5.4572 \\[1 em] \end{aligned} $$