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OpenStudy (anonymous):
Find the indicated term of the given arithmetic sequence. a[1]=45, d=-6, n=8 a. 309 b. -3 c. 3 d. 87
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OpenStudy (amistre64):
an = a1 + d(n-1)
OpenStudy (amistre64):
if we plug in all the parts they give thats: an = 45 -6(8-1)
OpenStudy (anonymous):
Thanks you :)
OpenStudy (amistre64):
yw
OpenStudy (amistre64):
the key being the definition of an arithmetic seq.
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