In Exercises 18, use the Chapter 4 Tech Card to answer the questions from the real-life scenarios.
Employer Labor Costs Based on data from 1995 to 1999, the average annual earnings in the printing and publishing industry may be modeled by
E(t) = 88.36t2 + 1291t + 34,528
dollars per employee and the average number of employees in the printing and publishing industry may be modeled by
N(t) = −4.417t3 + 24.93t2 − 25.30t + 1450
thousand employees
where t is the number of years since 1995.
In 1999, at what rate was employer spending on printing and publishing industry employee earnings increasing?
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