document.write( "Question 46999This question is from textbook COLLEGE ALGEBRA
\n" ); document.write( ": What is the common ration in the geometric sequence 4, -12, 36, -108, . . .? \n" ); document.write( "

Algebra.Com's Answer #31131 by atif.muhammad(135) $\"\"$ $\"About$

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4, -12, 36, -108\r\n" );
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document.write( "The common formula for a geometric sequence is \r\n" );
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document.write( "where a is the first term, r is the common ratio\r\n" );
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document.write( "In our case, a=4 -- 4 is the first term\r\n" );
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document.write( "So our formula now is: \r\n" );
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document.write( "We know that when n=2, our sequence number is -12.\r\n" );
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document.write( "Let's substitute these values into our formula\r\n" );
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document.write( "4r = -12\r\n" );
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document.write( "r= -3\r\n" );
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document.write( "Hence, our common ratio is -3.\r\n" );
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