mattkuhn mattkuhn
  • 24-04-2017
  • Mathematics
contestada

find a9 in the arithmetic sequence with a1=-2.75 and d=0.25

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23hanayegezu 23hanayegezu
  • 24-04-2017
A9=A1+(n-1)
-2.75+(8*0.25)
-2.75+2=-0.75
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