document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1181881>Question 1181881</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A biologist estimates there are 500 animals of a certain species in a particular region. He expects the function p(t)=500(0.9)^t/20 to model the future population of the species, where p(t) is the population  t years after the initial count. The domain of the model function is </SPAN>\n" );
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document.write( "Domain: Real numbers t such that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+%3E=+0 ALIGN=MIDDLE  ALT=\"t+%3E=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "This is because negative time values do not make any sense. So we make t nonnegative. \r<BR>\n" );
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document.write( "The domain in interval notation is [0, infinity)<BR>\n" );
document.write( "We can think of it like 0 <= t < infinity<BR>\n" );
document.write( "The use of the square bracket says to include the endpoint 0.<BR>\n" );
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