Question 618401
It looks like {{{ 440 }}} is the limit as {{{ t }}} becomes very large
{{{ f(t) = 440 / ( 1 + 6.3*e^(-.28t) ) }}}
{{{ e^(-.28t ) }}} approaches zero as {{{ t }}} becomes large, so
{{{ f(t) }}} approaches {{{ 440/1 = 440 }}}