document.write( "Question 887839: If the 5th term of an arithmetic sequence is 32 and the 10th term is 57, find the following;\r
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document.write( "A) d\r
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document.write( "B) A1\r
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document.write( "C) Formula for An\r
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document.write( "D) A22 \n" );
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Algebra.Com's Answer #537107 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! an = a1 + (n - 1)d\r \n" ); document.write( "\n" ); document.write( "a5 = 32=a1 + 4d \n" ); document.write( "a10=57 = a1 + 9d \n" ); document.write( "57=a + 9d \n" ); document.write( "32=a + 4d \n" ); document.write( "25=5d \n" ); document.write( "A) d=5 \n" ); document.write( "32=a1 + 4*5 \n" ); document.write( "B) a1=12 \n" ); document.write( "57=a1 + 9*5 \n" ); document.write( "57=a1+45 \n" ); document.write( "B) 12=a1 \n" ); document.write( "an = a1 + (n - 1)d \n" ); document.write( "an = 12 + 5(n - 1) \n" ); document.write( "an = 12 + 5n - 5 \n" ); document.write( "C) an = 5n +7 \n" ); document.write( "D) a22 = 5*22 +7=117\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |