Pageantgirlaliyah
Pageantgirlaliyah Pageantgirlaliyah
  • 19-12-2016
  • Mathematics
contestada

What is the 33rd term of this arithmetic sequence?
12, 7, 2, -3, -8, …
A.) -158
B.) -157
C.) -148
D.) -147

Respuesta :

Jane80
Jane80 Jane80
  • 22-12-2016
a1=12
d=a2-a1→d=2-7=-5
a33=a1+32d→a33=12+32(-5)→a33=12-160=-148
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