document.write( "Question 549927: write a rule for the nth term of the arithmetic sequence of the followings:\r
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document.write( "1. d=4, a14=46\r
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document.write( "2. d=5/3, a8=24\r
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document.write( "3. d=-6, a12=-4\r
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document.write( "4. a5=17, a15=77\r
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document.write( "5. a2=-28, a20=52\r
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document.write( "6. d=-4.1, a16=48.2\r
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document.write( "7. a7=34, a18=122\r
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document.write( "much help would be appreciated with full works please, not just the answer. thank you very much for ur help and happy new year as well as merry christmas! \n" );
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Algebra.Com's Answer #358197 by prateekagrawal(56)![]() ![]() ![]() You can put this solution on YOUR website! Here the formula is\r \n" ); document.write( "\n" ); document.write( "Tn= a+ (n-1)d \n" ); document.write( "so, for nth term we need to know first term and d. \n" ); document.write( "1. d=4, a14=46 \r \n" ); document.write( "\n" ); document.write( "here n=14, tn= 46 and d=4 \n" ); document.write( "so,\r \n" ); document.write( "\n" ); document.write( "46 = a+(14-1)*4 = a+13*4 \n" ); document.write( "46= a+ 52 \n" ); document.write( "so, a= -6\r \n" ); document.write( "\n" ); document.write( "so, nth term is Tn= -4 +(n-1)4 \n" ); document.write( "or, \n" ); document.write( "Tn= -4+4n-4 \n" ); document.write( "Tn= 4n-8 \n" ); document.write( "or \n" ); document.write( "an= 4n-8\r \n" ); document.write( "\n" ); document.write( "Tn and an are notations for nth term only. \n" ); document.write( "in the same way we can do other parts of this also. \n" ); document.write( " |