document.write( "Question 1114791: At time t = 0, a seed is planted. After t weeks, the height of the plant is given by f(t) = 0.3t^2 + 0.6t + 0.5 inches. At what rate is the plant growing after 8 weeks? \n" ); document.write( "
Algebra.Com's Answer #729700 by josgarithmetic(39616)\"\" \"About 
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How does f(t) change with t?\r
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\n" ); document.write( "\n" ); document.write( "\"df%2Fdt=%28d%2Fdt%29%280.3t%5E2%2B0.6t%2B0.5%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"df%2Fdt=0.6t%2B0.6\"\r
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\n" ); document.write( "\n" ); document.write( "Growth rate in inches per week,\r
\n" ); document.write( "\n" ); document.write( "\"0.6t%2B0.6\"\r
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\n" ); document.write( "\n" ); document.write( "and you want to evaluate that for t=8.
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