Answer
$\dfrac{1}{8}$
Work Step by Step
Using the laws of exponents, the given expression, $
2^6\cdot2^{-9}
,$ is equivalent to
\begin{array}{l}\require{cancel}
2^{6+(-9)}
\\\\=
2^{-3}
\\\\=
\dfrac{1}{2^3}
\\\\=
\dfrac{1}{8}
.\end{array}