The Level of Nitrogen Dioxide Present on a Certain June $$A ( t ) = 0.03 t ^ { 3 } ( t - 7 ) ^ { 4 } + 64.8 \quad 0 \leq t \leq 7$$

question 45

Essay

The level of nitrogen dioxide present on a certain June day in downtown Megapolis is approximated by
$$A ( t ) = 0.03 t ^ { 3 } ( t - 7 ) ^ { 4 } + 64.8 \quad 0 \leq t \leq 7$$
where $A ( t )$ is measured in pollutant standard index and $t$ is measured in hours with $t = 0$ corresponding to 7 a.m. What is the average level of nitrogen dioxide in the atmosphere from 1 a.m. to 2 p.m. on that day? Round to three decimal places.

Understand the arguments for and against income inequality and the impact of government programs on income distribution.

Identify the effects of occupational segregation and discrimination on wages and the allocation of resources.

Explain the measures of income inequality, including the Gini ratio and the Lorenz curve.

Explore the factors contributing to growing income inequality in the United States.

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