Question

If Z equals 12.8 what is the value of to Z equals 4

Answer 1

`\begin{gathered} z=12.8 \\ 2(z-4)\text{ implies that you must substitute the value of z=12.8 in that equationa. hence,} \\ 2(z-4)\text{ }\Rightarrow2(12.8-4)=2(8.8)=17.6 \end{gathered}`