2 years ago

170,85,0,-85 find explicit formula for the arithmetic sequence

1 answer:

Lunna [17]2 years ago

3 0

An= A1 + d(n-1)
An= 170 + (-85)(n-1)
An=170-85(n-1)
An= 170-85n+85

Answer: An=255-85n

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