Answers

2016-06-20T20:00:21+08:00
15 terms. 3,7,11,15,19,23,27,31,35,39,43,47,51,55, 59
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  • Brainly User
2016-06-20T20:22:26+08:00
An = a₁ + (n-1) (d)

a₁ = 3          an = 59        d = 4

59 = 3 + (n-1) (4)

59 = 3 + 4n - 4

59 = 4n - 4 + 1

59 = 4n - 1

4n = 59 + 1

4n = 60

4n/4 = 60/4

n = 15

ANSWER:  The given sequence has 15 terms, with 59 as the 15th term (a
₁₅).
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