Use the Properties of Real Numbers to Write the Expression $2 x \left( a - b - 2 c + \frac { d } { 2 } \right)$

question 128

Multiple Choice

Use the properties of real numbers to write the expression without parentheses. $2 x \left( a - b - 2 c + \frac { d } { 2 } \right)$

• A) \(x a - x b - 2 x c + x d\)
• B) \(2 x a - 2 x b - x c + 4 x d\)
• C) \(x a - 2 x b - 4 x c + x d\)
• D) \(2 x a - 2 x b - 4 x c + x d\)
• E) \(2 x a - x b - 2 x c + 2 x d\)

Distinguish the ethical considerations in using information from the internet.

Understand percentage calculations and apply them to determine parts of a whole in various contexts.

Analyze real-world scenarios to calculate total sales, revenue, or expenditure based on given percentages.

Calculate the change in quantities, such as time or salary, resulting from percentage increases or decreases.

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Definitions:

Rock Avalanche

A rapid, large-volume descent of rock debris and soil on a mountain slope, often triggered by seismic activity, rainfall, or melting snow.

Debris Avalanche

A rapid flow of rock debris, soil, and other material down a slope, often triggered by heavy rainfall or seismic activity.

Earth Flow

A type of mass wasting event that occurs when water-saturated soil or fine-grained sediment flows downhill, resembling a very slow moving river of soil.

Debris Avalanche

A rapid flow of rock, soil, and other debris down a slope, often triggered by natural events such as earthquakes or volcanic eruptions.