SOLUTION: Find the 50th term of the sequence: 5, -2, -9, -16 A) -352 B) -343 C) -338 D) -331

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Question 1117243: Find the 50th term of the sequence: 5, -2, -9, -16
A) -352
B) -343
C) -338
D) -331
Answer by ikleyn(52850)   (Show Source):
You can put this solution on YOUR website!
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Arithmetic progression with the first term 5 and the common difference d = (-2-5) = -7. The n-th term is = + d*(n-1). In your case = 5 + (-7)*(n-1). (1) To find , substitute n= 50 into the formula (1) and calculate.

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    - Arithmetic progressions
    - The proofs of the formulas for arithmetic progressions
    - Problems on arithmetic progressions
    - Word problems on arithmetic progressions
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