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Pristerberhann
Pristerberhann Pristerberhann
  • 29-05-2016
  • Mathematics
Answered

The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference.

A8/9
B2

Verified Answer :

caylus
caylus caylus
  • 29-05-2016

Hello,

Answer B
\(a_{0}=-5\\a_{9}=a_{0}+9*r\\13=-5+9*r\\r= \frac{18}{9}=2\)

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