Question: WORKER EFFICIENCY An efficiency study conducted for Elektra Electronics showed that the number of Space Commander walkie-talkies assembled by the average worker t hr after starting work at 8 a.m. is given by
N(t) = -t3 + 6t2 + 15t
a. Find the rate at which the average worker will be assembling walkie-talkies t hr after starting work.
b. At what rate will the average worker be assembling walkie-talkies at 10 a.m.? At 11 a.m.?
c. How many walkie-talkies will the average worker assemble between 10 a.m. and 11 a.m.?