$x ^ { 4 } - 53 x ^ { 2 } + 196 < 0$

question 67

Multiple Choice

$x ^ { 4 } - 53 x ^ { 2 } + 196 < 0$

• A) \(x < - 2 \text { or } x > 2\)
• B) \(- 7 < x < - 2 \text { or } 2 < x < 7\)
• C) \(- 7 < x < - 2\)
• D) \(- 7 < x < 7\)

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Definitions:

Stationary Source

Fixed locations or sites that release pollutants into the environment, such as factories, power plants, and refineries.

Mobile Source

Mobile source refers to any non-stationary source of air pollutants, such as vehicles, planes, and ships, contributing significantly to air pollution.

Carbon Dioxide Emissions

The release of CO2 into the atmosphere, primarily from burning fossil fuels, contributing to the greenhouse effect and climate change.

Burning Fossil Fuels

The combustion of coal, oil, natural gas, and other fuels derived from geological formations, releasing energy but also pollutants and greenhouse gases.