document.write( "Question 800386: Determine the pattern in the set of numbers. Explain what the pattern is, then write the next two numbers.
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document.write( "5,8, 11, 14,... ( I know this part)
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document.write( "Find the sum of the first 100 even numbers. What strategy did you use?
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document.write( "( I don't get this part at all) \n" );
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Algebra.Com's Answer #483050 by waynest(281)![]() ![]() ![]() You can put this solution on YOUR website! d = 8 - 5 = 3\r \n" ); document.write( "\n" ); document.write( "sum = n/2(2a + (n - 1)d \n" ); document.write( "sum = 100/2 (2(5) + (100 -1)3) \n" ); document.write( "sum = 50 (10 + (99)3) \n" ); document.write( "sum = 50(10 + 297) \n" ); document.write( "sum = 50(307) \n" ); document.write( "sum = 15350 \n" ); document.write( " |