document.write( "Question 1135688: A certain species of tree grows an average of 3.1 cm per week. Write an equation for the sequence that represents the weekly height of this tree in centimeters if the measurements begin when the tree is 600 centimeters tall. \n" ); document.write( "
Algebra.Com's Answer #753330 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "a1 = 600\r\n" );
document.write( "d = 3.1\r\n" );
document.write( "\r\n" );
document.write( "\"a%5Bn%5D=a%5B1%5D%2B%28n-1%29d\" <-- the formula for the nth term of an A.P.\r\n" );
document.write( "\r\n" );
document.write( "\"a%5Bn%5D=600%2B%28n-1%29%283.1%29\" <-- substituted for a1 and d\r\n" );
document.write( "\r\n" );
document.write( "\"a%5Bn%5D=600%2B3.1%28n-1%29\"  <-- moved the 3.1 to the left of (n-1)\r\n" );
document.write( "\r\n" );
document.write( "\"a%5Bn%5D=600%2B3.1n-3.1%29\" <-- distributed\r\n" );
document.write( "\r\n" );
document.write( "\"a%5Bn%5D=596.9%2B3.1n%29\" <-- combined like terms\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );