Consider the sequence 3, -9, 27, -81, What is the explicit formula for the sequence and what is the 15th term of the sequence? a an=3(3)n-1; -14,348,907 b an=an-1(-3); 14,348,907 c an=-3(3)n-1; 14,348,907 d an=3(-3)n-1; 14,348,907

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the answer is 45 i just did it on oddesy ware

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

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