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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. Use the second derivative to estimate how fast the rate of increase in subscriberships was changing in 1991 in millions of subscriberships per year.
Third World
A term originally used to describe countries not aligned with either the NATO or Communist Blocs, often used now to refer to developing nations.
Colonialism
The policy or practice of acquiring full or partial political control over another country, occupying it with settlers, and exploiting it economically.
Missile Gap
The claim, raised by John F. Kennedy during his campaign for president in 1960, that the Soviet Union had developed a technological and military advantage during Eisenhower’s presidency.
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