document.write( "Question 1203687: X: 8,9,10,11,12,13,14
\n" ); document.write( "Y: 1,2,3,4,5,6,7\r
\n" ); document.write( "\n" ); document.write( "1. ∑X ∑Y
\n" ); document.write( "2. ∑X²Y
\n" ); document.write( "3. 3∑(x+y) \n" ); document.write( "

Algebra.Com's Answer #839456 by mananth(16946) $\"\"$ $\"About$

You can put this solution on YOUR website!
X: 8,9,10,11,12,13,14
\n" ); document.write( "Y: 1,2,3,4,5,6,7
\n" ); document.write( "1. ∑X ∑Y
\n" ); document.write( "2. ∑X²Y
\n" ); document.write( "3. 3∑(x+y)\r
\n" ); document.write( "\n" ); document.write( " $\"SIGMA\"$ X =8 + 9 + 10 + 11 + 12 + 13 + 14 = 77\r
\n" ); document.write( "\n" ); document.write( " $\"SIGMA\"$ Y = 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28\r
\n" ); document.write( "\n" ); document.write( " $\"SIGMA\"$ X^2=(8²) + (9²) + (10²) + (11²) + (12²) + (13²) + (14²) =875\r
\n" ); document.write( "\n" ); document.write( " $\"SIGMA\"$ (X+Y) = 77+28 = 105\r
\n" ); document.write( "\n" ); document.write( "∑X ∑Y = 77*28=\r
\n" ); document.write( "\n" ); document.write( "∑X²Y= 875*28\r
\n" ); document.write( "\n" ); document.write( "3∑(x+y) = 3*105=\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );