Seudónimo Seudónimo
  • 16-02-2018
  • Mathematics
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Find a7 in the arithmetic sequence with a1=-28 and d=10

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Аноним Аноним
  • 16-02-2018
a7 = a1 + (7 - 1)d
     = -28 + (7 - 1)10
      = -28 + 60
      = 32 answer.
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