Respuesta :

Answer:

± 60

Step-by-step explanation:

aₙ = a₁ * rⁿ⁻¹

a₇ = 30 = a₁ * r⁷⁻¹ = a₁ * r⁶     (1)

a₅ = 120 = a₁ * r⁵⁻¹ = a₁ * r⁴     (2)

(1)/(2): 30/120 = 1/4 = r²

r = ± 1/2   or ± 0.5

a₁ = a₇/r⁶ = 30/0.5⁶ = 1920

a₆ = 1920 * (± 1/2)⁶⁻¹ = 1920 * ± 1/32 = ± 60

The possible values of the 6th term of the sequence ± 60.

The 5th term in a geometric sequence is 120.

The 7th term is 30

We have to determine the 6th term of the sequence.

What is the formula for the nth term of the sequence?

[tex]a_n = a* r^n[/tex]

a₇ = 30 = a₁ * r⁷⁻¹ = a₁ * r⁶  ......   (1)

a₅ = 120 = a₁ * r⁵⁻¹ = a₁ * r⁴   ...  (2)

(1)/(2): 30/120 = 1/4 = r²

r = ± 1/2   or ± 0.5

a₁ = a₇/r⁶ = 30/0.5⁶ = 1920

a₆ = 1920 * (± 1/2)⁶⁻¹ = 1920 * ± 1/32 = ± 60.

To learn more about the geometric sequence visit:

https://brainly.com/question/1509142

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