johngandara06 johngandara06

10-01-2021
Mathematics

contestada

Write an explicit formula for an, the nth term of the sequence 75, 15, 3, ....

Respuesta :

kenlingdad kenlingdad

10-01-2021

Answer:

aₙ = 75 x 0.2ⁿ⁻¹ or 75 x (1/5)ⁿ⁻¹

Step-by-step explanation:

a₁ = 75

a₂ = 75 x 0.2¹ = 75 x 0.2 ²⁻¹ = 15

a₃ = 75 x 0.2² = 75 x 0.2³⁻¹ = 3

.......

aₙ = 75 x 0.2ⁿ⁻¹ or 75 x (1/5)ⁿ⁻¹

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