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OpenStudy (anonymous):
Find the 31st term of the following sequence. 9, 15, 21, ... 186 189 195
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OpenStudy (raden):
use formula : an = a1+(n-1)d
OpenStudy (raden):
from information above, a1=9, d=a2-a1=a3-a2=15-9=21-15=6 so, the 31st term is a31 = a1 + (31-1)6 a31=9 + 30(6) a31 = ....?
OpenStudy (raden):
got it ?
OpenStudy (raden):
what ur answer @tlaquita
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