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OpenStudy (thickgirl_angel):
Given the Arithmetic sequence A1,A2,A3,A4 48, 56, 64, 72 What is the value of A18?
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OpenStudy (sshayer):
find common difference d d=second term-first term=? \[An=A1+(n-1)d\]
OpenStudy (sshayer):
put n=18
OpenStudy (evoker):
Going up by 8 each time so looks like @sshayer is saying where d=8
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