anonymous
  • anonymous
arithmetic where : t10=8 and t18=-40. find the first 3 terms of the sequence.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
8 +8r = -40 r = -6 a +9r = 8 a = 8 +54 = 62 second: 56 third: 50
anonymous
  • anonymous
could you explain please?
anonymous
  • anonymous
Well, an arithmetic sequence is one that has a start value and adds a number to that value, so it has the pattern: a, a+r, a+2r, etc... therefore, to find the rate when given two values in the pattern, just use that rule :D

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