Answer
$$x \approx17.46^{\circ \:}$$
Work Step by Step
Given $$\sin x = 0.3$$
Then
\begin{align*}
\sin^{-1}\sin x &= \sin^{-1}(0.3)\\
x &= \sin^{-1}(0.3)\\
&\approx17.46^{\circ \:}
\end{align*}
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