Write a Formula for the General Term (The Nth Term) $a _ { n } = 5 n + 16 ; a _ { 20 } = 116$

question 16

Multiple Choice

Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20,
the 20th term of the sequence.
--21, -26 , -31, -36, . . .

• A) \(a _ { n } = 5 n + 16 ; a _ { 20 } = 116\)
• B) \(a _ { n } = 5 n + 21 ; a _ { 20 } = 121\)
• C) \(a _ { n } = - 5 n - 16 ; a _ { 20 } = - 116\)
• D) \(a _ { n } = - 5 n - 21 ; a _ { 20 } = - 121\)

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