Question

Please help me to do this problem can you give me some explain about how to find the answer.

Answer 1

To find the value of the expression given we need to remember that following properties:

`\begin{gathered} a^(-n)=(1)/(a^n) \\ (1)/(a^(-n))=a^n \end{gathered}`

Using this properties, we can find the value of the expression. To do this we plug the values of x and y given:

`\begin{gathered} (1)/(2^(-2)(2)^(-3)(-4)^5)=(2^2(2)^3)/((-4)^5) \\ =(4\cdot8)/(-1024) \\ =-(32)/(1024) \\ =-(1)/(32) \end{gathered}`

Therefore the answer is C.