jacquelynanoval
jacquelynanoval jacquelynanoval
  • 02-08-2016
  • Mathematics
contestada

PLEASE HELP

Find an equation for the nth term of the arithmetic sequence.

a18 = 97, a20 = 281

Respuesta :

CollinStanley
CollinStanley CollinStanley
  • 02-08-2016
a20-a18=a1+19d-a1-17d=2d =281-97 so d=92
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