document.write( "Question 1187054: A function is given. (a) Determine the net change between the given values of the variable. f(t) = 5t^2; t = 3, t = 3 + h \n" ); document.write( "
Algebra.Com's Answer #819292 by Boreal(15235)\"\" \"About 
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f(t+h)=5t^2+10th+h^2
\n" ); document.write( "subtract 5t^2
\n" ); document.write( "get 10th +h^2
\n" ); document.write( "divide by h
\n" ); document.write( "get 10t+h, and if t=3 that is 30+h net change.\r
\n" ); document.write( "\n" ); document.write( "---
\n" ); document.write( "f(3)=45
\n" ); document.write( "f(3+h)=45+30h+h^2
\n" ); document.write( "subtract first from the second
\n" ); document.write( "get (30h+h^2)/h
\n" ); document.write( "=30+h
\n" ); document.write( "
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