World population growth after its fastest rate of growth


Question: WORLD POPULATION GROWTH After its fastest rate of growth ever during the 1980s and 1990s, the rate of growth of world population is expected to slow dramatically in the 21st century. The function

G(t) = 1.58e-0.213t

gives the projected annual average percentage of population growth/decade in the tth decade, with t = 1 corresponding to 2000.

a. What will the projected annual average population growth rate be in 2020 (t = 3)?

b. How fast will the projected annual average population growth rate be changing in 2020?

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Mathematics: World population growth after its fastest rate of growth
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