Simplify the Expression Algebraically $$\frac { 9 } { \sqrt { 2 } } \cos \left( \frac { 5 \pi } { 4 } - x \right)$$

question 48

Multiple Choice

Simplify the expression algebraically.​ $$\frac { 9 } { \sqrt { 2 } } \cos \left( \frac { 5 \pi } { 4 } - x \right)$$ ​

• A)- \(\frac { 9 } { 2 }\) \(( \cos x + \sin x )\)
• B) \(\frac { 9 } { 2 }\) \(( \cos x - \sin x )\)
• C) \(\frac { 9 } { 2 }\) \(\left( \cos \frac { 5 x } { 4 } + \sin \frac { 5 x } { 4 } \right)\)
• D) \(\frac { 9 } { 2 }\) \(( \sin x - \cos x )\)
• E) \(\frac { 9 } { 2 }\) \(\left( \cos \frac { 5 x } { 4 } - \sin \frac { 5 x } { 4 } \right)\)

Understand the environmental and technical aspects of unconventional oil and gas sources (e.g., shale gas, oil sands).

Recognize the significance of geological surveys and drilling in confirming subsurface interpretations.

Understand the basic processes behind the generation of nuclear energy and its associated minerals.

Understand the role of learned associations in human behavior.

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Definitions:

Fixed Costs

Expenses that do not change in proportion to the volume of goods or services a company produces.

Capacity

The maximum output or producing ability of a plant, machine, or company under normal or specific conditions.

Operating Profit

The earnings before interest and taxes (EBIT) generated from a company's core business operations.

Variable Costs

Expenses that change in proportion to the activity of a business, such as costs for raw materials or production volume.