Question

Determine the 16th term in the sequence defined by: A_n = 5–2(n-1)​

Answer 1

Answer: 45

Explanation:

`a_(n) = 5 - 2(n - 1)\\a_(16) = 5-2 (16-1)\\a_(16) = 5-2 (15)\\a_(16) = 3 (15)\\a_(16) =45`

Answer 2

• -25

Explanation:

• aₙ = 5–2(n-1)​ = 5 - 2n + 2 = 7 - 2n

Substitute n with 16 for the 16th term

• a₁₆ = 7 - 2(16) = 7 - 32 = -25