Population growth. The two curves below describe the numbers of people in two countries at time t , in years. a) Find the average rate of changes of each population with respect to time t as t changes from 0 to 4. This is often called the average growth rate. b) If the calculations in part (a) were the only ones made, would we detect the fact that the populations were growing differently? Why or why not? c) Find the average rates of changes of each population as t changes from 0 to 1; from 1 to 2; from 2 to 3; from 3 to 4. For which population does the statement “the population grew consistently at a rate of 125 million per year” convey accurate information? Why?
Population growth. The two curves below describe the numbers of people in two countries at time t , in years. a) Find the average rate of changes of each population with respect to time t as t changes from 0 to 4. This is often called the average growth rate. b) If the calculations in part (a) were the only ones made, would we detect the fact that the populations were growing differently? Why or why not? c) Find the average rates of changes of each population as t changes from 0 to 1; from 1 to 2; from 2 to 3; from 3 to 4. For which population does the statement “the population grew consistently at a rate of 125 million per year” convey accurate information? Why?
Solution Summary: The author calculates the average rate of change of each population with respect to time t, from the two curves which describe the numbers of people in two countries.
Use the properties of logarithms, given that In(2) = 0.6931 and In(3) = 1.0986, to approximate the logarithm. Use a calculator to confirm your approximations. (Round your answers to four decimal places.)
(a) In(0.75)
(b) In(24)
(c) In(18)
1
(d) In
≈
2
72
Find the indefinite integral. (Remember the constant of integration.)
√tan(8x)
tan(8x) sec²(8x) dx
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