## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$-\dfrac{10}{17}$
To get the reciprocal of a number, interchange the numerator and the denominator. Hence, the reciprocal of the given expression, $-1.7$, is \begin{array}{l} -\dfrac{17}{10} \\\\= -\dfrac{10}{17} .\end{array}