document.write( "Question 978756: Find a sequence of four numbers. The first of which is six and the fourth of which is 16, if the first three numbers form an arithmetic sequence and the last three numbers form a geomtrice sequence \n" ); document.write( "

Algebra.Com's Answer #600166 by richwmiller(17219) $\"\"$ $\"About$

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6,6+x,6+2x,16\r
\n" ); document.write( "\n" ); document.write( "r=(6+2x)/6+x),
\n" ); document.write( "16=(6+2x)/(6+x)*(6+2x)
\n" ); document.write( "two sequences
\n" ); document.write( "r=-4 x=-5
\n" ); document.write( "6,1,-4,16
\n" ); document.write( "and
\n" ); document.write( "r=4/3 x=3
\n" ); document.write( "6,9,12,16\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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