Mathematics: Given an arithmetic sequence in the table below, create the explicit formula and list any restrictions to the domain. a. a_n = 9 − 3(n − 1) where n ≤ 9 b. a_n = 9 − 3(n − 1) where n ≥ 1 c. a_n = 9 − 6(n − 1) where n ≤ 9 d. a_n = 9 − 6(n − 1) where n ≥ 1

Given an arithmetic sequence in the table below,

Ответ:

ramentome7542

16.01.2022

Using the formula:
an = a1 +(n-1)d
a1 = 9 (first term of the sequence)
d= -6 (common difference)

Substituting into the formula:
an= a1 +(n-1)d
an = 9 + (n-1)(-6)
an = 9 - 6(n-1)

So the best answer is :D. a_n = 9 − 6(n − 1) where n ≥ 1

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Ответ:

andy6128

04.06.2020

Mathematics

I need to know where the lines are to answer

Step-by-step explanation:

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Given an arithmetic sequence in the table below, create the explicit formula and list any restrictions to the domain.

a. a_n = 9 − 3(n − 1) where n ≤ 9
b. a_n = 9 − 3(n − 1) where n ≥ 1
c. a_n = 9 − 6(n − 1) where n ≤ 9
d. a_n = 9 − 6(n − 1) where n ≥ 1

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