Ask Question
16 March, 01:24

Find the nTH term of this sequence: 15, 12, 9, 6

+2
Answers (2)
  1. 16 March, 03:38
    0
    -3n + 18

    Step-by-step explanation:

    an = dn + (a - d)

    The difference is - 3.

    The first term is 15.

    an = - 3n + (15 - (-3))

    an = - 3n + 15 + 3

    an = - 3n + 18
  2. 16 March, 03:41
    0
    aₙ = 18 - 3n

    Step-by-step explanation:

    15, 12, 9, 6

    Given AP with first term = 15 and common difference = - 3

    aₙ=a₁ + (n-1) d = 15 + (n-1) * (-3) = 15 - 3n+3 = 18-3n

    aₙ = 18 - 3n
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Find the nTH term of this sequence: 15, 12, 9, 6 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers