brady1021 brady1021

04-05-2021
Mathematics

contestada

Find the fifth term when a1=4 and r=-3

Respuesta :

jimrgrant1 jimrgrant1

04-05-2021

Answer:

a₅ = 324

Step-by-step explanation:

The nth term of a geometric sequence is

[tex]a_{n}[/tex] = a₁ [tex]r^{n-1}[/tex] then

a₅ = 4 × [tex](-3)^{4}[/tex] = 4 × 81 = 324

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