Respuesta :

Answer:[tex]Q_n=Q_{n-1}+2.5[/tex]

Explanation:

Given:

[tex]\begin{gathered} Q_1=3 \\ Q_3=8 \\ Q_7=18 \end{gathered}[/tex]

The recursive formula is:

[tex]Q_n=Q_{n-1}+2.5[/tex]

For n = 2, 3, 4, ...

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