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A certain arithmetic sequence has the following explicit formula for the nth term: an = 4 + (n - 1)(7) The same sequence has the following recursive formula: an = an-1 + _____ What number belongs in the blank space in the recursive formula? A. 4 B. 7 C. 28 D. 3
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@welshfella
this number is the common difference, d.
i thought it was b
what is the common difference of the sequence, based on your formula \(\large\color{black}{ \displaystyle a_{n}=4+(n-1)(7) }\)
?
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7
iright
yws, d=7.
your answer is corrrrrrrrect
ook thx
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