document.write( "Question 854530: What are the missing terms of the geometric sequence -3, _, _, -375?\r
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document.write( "A)-127, -251
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document.write( "B) 127, 251
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document.write( "C)15, 75
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document.write( "D) -15, -75 \n" );
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Algebra.Com's Answer #514737 by DrBeeee(684)![]() ![]() ![]() You can put this solution on YOUR website! A geometric series means that each subsequent term is the product of the term and a CONSTANT. \n" ); document.write( "Let n be the constant. \n" ); document.write( "The given sequence is \n" ); document.write( "(1) -3, _, _, -375 or \n" ); document.write( "(2) -3, -3*n, -3*n*n, -3*n*n*n \n" ); document.write( "Note that the fourth term is \n" ); document.write( "(3) -3*n*n*n = -375 or \n" ); document.write( "(4) 3*n^3 = 375 or \n" ); document.write( "(5) n^3 = 125 or \n" ); document.write( "(6) n = 5 \n" ); document.write( "The complete sequence is \n" ); document.write( "(7) -3, -15, -75, -375 \n" ); document.write( "Answer: The missing terms are -15 and -75, choice D. \n" ); document.write( " \n" ); document.write( " |