r(t)=(160(t^(2)+9t))/((t^(2)+5t+10)^(2)),0

\ (a) Find

\\\\lim_(t->4)r(t)

.\ units/hr\ (b) Find

\\\\lim_(t->8^(-))r(t)

.\ units/hr\ (c) Is the rate of productivity higher near the lunch break (at

t=4

) or near quitting time (at

t=8

)?\ Productivity is higher near the lunch break.\ Productivity is higher near quitting time.\ Productivity is the same at both times.

r(t)=(t2+5t+10)2160(t2+9t),0t8 (a) Find limt4r(t). units/hr (b) Find limt8r(t). units/hr (c) Is the rate of productivity higher near the lunch break (at t=4 ) or near quitting time (at t=8 )? Productivity is higher near the lunch break. Productivity is higher near quitting time. Productivity is the same at both times