Question

Express - 1/128 as a power notation​

Answer 1

Answer:

${ - 2}^{ - 7}$

Step-by-step explanation:

$\frac{ - 1}{128} \\ \\ = \frac{ - 1}{(2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2)} \\ \\ = \frac{ - 1}{ {2}^{7} } \\ = - 1 \times {2}^{ - 7} \\ \\ = { - 2}^{ - 7}$