Ask Question
23 November, 20:40

The 16th term of an arithmetic sequence is - 8 and the first term is 12. what is the common difference, d?

+5
Answers (1)
  1. 23 November, 21:03
    0
    So the first term a=12

    the formula for arithmetic sequence is

    xn=a + d (n-1)

    x16th = 12+d (16-1) = - 8

    12+15d = - 8

    15d = - 8-12

    d=-20/15 = - 4/3

    the common difference is d = - 4/3
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “The 16th term of an arithmetic sequence is - 8 and the first term is 12. what is the common difference, d? ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers