Answer :
Answer:
The equations that can model exponential decay is;
[tex]\begin{gathered} y=2(0.20)^x \\ y=0.55(0.91)^x \end{gathered}[/tex]Explanation:
Given the equations in the attached image.
We want to identify which equations model exponential decay.
Exponential decay is of the form;
[tex]\begin{gathered} y=a(r)^x \\ \text{where;} \\ r<1 \end{gathered}[/tex]From the given equations the equations that can model exponential decay is;
[tex]\begin{gathered} y=2(0.20)^x \\ y=0.55(0.91)^x \end{gathered}[/tex]Since the base of both exponential is less than 1.