document.write( "Question 150160: Could I please get some help with the following problem:\r
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document.write( "Find the sum:\r
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document.write( "9
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document.write( "∑ (-2k+8)
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document.write( "k=1\r
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document.write( "Thanks,
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document.write( "Ray \n" );
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Algebra.Com's Answer #110200 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! Set up a table of values for k and the argument, (-2k+8). \n" ); document.write( "EXCEL is a great program to do this. \n" ); document.write( "k=1, -2k+8=-2(1)+8=6 \n" ); document.write( "k=2, -2k+8=-2(2)+8=4 \n" ); document.write( "k=3, -2k+8=-2(3)+8=2 \n" ); document.write( "k=4, -2k+8=-2(4)+8=0 \n" ); document.write( "k=5, -2k+8=-2(5)+8=-2 \n" ); document.write( "k=6, -2k+8=-2(6)+8=-4 \n" ); document.write( "k=7, -2k+8=-2(7)+8=-6 \n" ); document.write( "k=8, -2k+8=-2(8)+8=-8 \n" ); document.write( "k=9, -2k+8=-2(9)+8=-10 \n" ); document.write( "Sum the first nine terms, \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |