Southwest Airlines The number of employees, in thousands, of Southwest Airlines can be modeled by the function E(t) = 0.017t2 + 2.164t + 8.061, where t is the number of years after 1990. Southwest Airlines’ revenue during the same time period is given by the model R(E) = 0.165E − 0.226 billion dollars when there are E thousand employees of the company.
a. Find and interpret the meaning of the function R(E(t)).
b. Use the result of part (a) to find R(E(3)). Interpret this result.
c. How many employees worked for Southwest Airlines in 1997?
d. What was the 1997 revenue for this airline?
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