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vivianrush

  • 3 years ago

Find the 50th term of the sequence 5, –2, –9, –16, ... –352 –343 –338 –331

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  1. LilHefner3
    • 3 years ago
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    5. Find the 50th term of the sequence 5, –2, –9, –16, ... (1 point) (0 pts) –352 (0 pts) –343 (1 pt) –338 (0 pts) –331 1 /1 point

  2. campbell_st
    • 3 years ago
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    ok... the sequence is arithmetic so use the formula for a term in an arthmetic sequence \[T_{n} = a + (n - 1) d\] a= 1st term, n = number of terms d = common difference so \[T_{50} = 5 + (50 -1) \times (-7)\] just evaluate for the answer

  3. heathernelly
    • 3 years ago
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    a1 would be the first term(5) nth term = 50 an=a1+(n-1)(d) a50=5+(50-1)(-7) a50=5-7(49)= -338

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