What Is The Nth Term For 20,18,16,14,12,10?
What is the nth term for 20,18,16,14,12,10?
twentieth eighteenth sixteenth fourteenth twelfth tenth
Find The Next Four Terms Of The Arithmetic Sequence 21,15,9,
Find the next four terms of the arithmetic sequence 21,15,9 Answer: The next four terms are: 3, -3, -9, -15. Step-by-step explanation: The first 3 terms of the sequence: 21, 15, 9 (decreasing sequence) a₁ = 21 a₂ = 15 a₃ = 9 Find the common difference (d): a₂ - a₁ = a₃ - a₂ 15 - 21 = 9 - 15 -6 = -6 d = -6 Find the next four terms a₄, a₅, a₆, a₇: a₄ = a₃ + d a₄ = 9 + (-6) a₄ = 3 a₅ = 3 + (-6) a₅ = -3 a₆ = -3 + (-6) a₆ = -9 a₇ = -9 + (-6) a₇ = -15 The next four terms are: 3, -3, -9, -15. The sequence: 21, 15, 9, 3, -3, -9, -15.
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