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OpenStudy (anonymous):
8.A fireplace contains 46 bricks along its bottom row. If each row above decreases by 4 bricks, how many bricks are on the 12th row?i need to know if i would use the formual for an arithmetic sequence, arithmetic series, geometric sequence, or geometric series to solve this
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ganeshie8 (ganeshie8):
arithmetic : something is added or subtracted geometric : something is multiplied or divided here 4 bricks are getting "subtracted" as we go up the row.. which sequence it is ?
OpenStudy (anonymous):
is it an arithmetic sequence
ganeshie8 (ganeshie8):
perfect you got it now.... :) !!
OpenStudy (anonymous):
awesome :) thanks you!!
ganeshie8 (ganeshie8):
yw .. :)
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