Answer
$\dfrac {3}{8}=0.375$
Work Step by Step
$\lim _{h\rightarrow 0}\dfrac {3}{\sqrt {16+3h}+4}=\dfrac {3}{\sqrt {16+3\times 0}+4}=\dfrac {3}{\sqrt {16}+4}=\dfrac {3}{8}$
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