document.write( "Question 310023: can you help. I am trying to help my son with his algebra homework. His school does not send books home and I haven't used some of this in 20 years. The problem states.\r
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document.write( "Write an equation for the nth term of -23,38,99,160\r
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document.write( "solution choices are
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document.write( "d. \n" );
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Algebra.Com's Answer #221752 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Write an equation for the nth term of -23,38,99,160 \n" ); document.write( "--- \n" ); document.write( "Comment: This is an arithmetic sequence with \n" ); document.write( "a(1) = -23 and d = 99-38 = 61 \n" ); document.write( "----------------------------------------- \n" ); document.write( "Find the pattern for the nth term by looking at \n" ); document.write( "the pattern based on the 1st term. \n" ); document.write( "----------------------------------------- \n" ); document.write( "1st term: -23 \n" ); document.write( "2nd term: -23 + 61 = 38 \n" ); document.write( "3rd term: -23 + 2(61) = 99 \n" ); document.write( "4th term: -23 + 3(61) = 160 \n" ); document.write( "... \n" ); document.write( "nth term: -23 + (n-1)61 \n" ); document.write( "----------------- \n" ); document.write( "Simplify the nth term equation: \n" ); document.write( "a(n) = -23 + 61n-61 \n" ); document.write( "a(n) = 61n - 84 \n" ); document.write( "======================== \n" ); document.write( "Ans: c \n" ); document.write( "======================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======================== \n" ); document.write( "solution choices are \n" ); document.write( "a. a(n)=38n-61 \n" ); document.write( "b. a(n)=61n-24 \n" ); document.write( "c. a(n)=61n-84 \n" ); document.write( "d. a(n)=-46n \n" ); document.write( " \n" ); document.write( " |