document.write( "Question 1155543: The second and fifth terms of a geometric progressions are 16 and 2 respectively. Determine the common ratio and the first term \n" ); document.write( "

Algebra.Com's Answer #778141 by math_helper(2461) $\"\"$ $\"About$

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document.write( "The general form is a, ak, ak^2, ak^3, ... etc.\r
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document.write( "Where a=first term (often used with subscripts )
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document.write( "      k=common ratio\r
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document.write( "Given info:
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document.write( "Notice that 
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document.write( "so \r
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document.write( "Common ratio: \r
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document.write( "The first term can be found by dividing k*a by k: 16/(1/2) = 32\r
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document.write( "First term:  
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