document.write( "Question 196909: Determine whether each sequence is arithmetic or geometric. Then identify the common difference or the common ratio.
\n" ); document.write( "14. 1854, 1788, 1722, 1656, 1590, . . .
\n" ); document.write( "this is an arithmetic Progression
\n" ); document.write( "Common Difference = -66\r
\n" ); document.write( "\n" ); document.write( "15. 18, 45, 112.5, 281.25, 703.125, . . .
\n" ); document.write( "is a Geometric Progression
\n" ); document.write( "Common ratio = 2.5\r
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\n" ); document.write( "\n" ); document.write( "16. 1, -4, 16, -64, 256, . . .
\n" ); document.write( "Geometric Progression
\n" ); document.write( "Common ratio = -4\r
\n" ); document.write( "\n" ); document.write( "17. -125, -108, -91, -74, -57, . . .
\n" ); document.write( "Arithmetic Progression
\n" ); document.write( "Common Difference = 17\r
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Algebra.Com's Answer #147622 by mathsteacher(28)\"\" \"About 
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