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The following table shows the numbers of U.S. cellular subscriberships (in millions) from 1985 to 2002. Source: The CTIA Semi-Annual Wireless Industry Survey
Assume that the number of U.S. cellular subscriberships, in millions, can be modeled by the function , where t is the number of years past 1980. Find the function that models the instantaneous rate of change of the U.S. cellular subscriberships.
Antibiotics
Medications used to prevent and treat bacterial infections by either killing the bacteria or inhibiting their growth.
Common Cold
A viral infection of the upper respiratory tract, characterized by sneezing, sore throat, coughing, and congestion.
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Sensory receptor cells or organs that transduce (convert) chemical substances in the environment or blood into signals perceived by the nervous system.
Carbon Dioxide
An invisible, scent-free gas generated through the combustion of carbon-based materials and in the act of respiration. It exists naturally within the Earth's atmosphere and is utilized by plants during photosynthesis.
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