Find the LCD $$\frac { 12 } { x + 9 } , \frac { 5 } { x ^ { 2 } - 81 }$$

question 44

Multiple Choice

Find the LCD. Do not combine fractions.
- $$\frac { 12 } { x + 9 } , \frac { 5 } { x ^ { 2 } - 81 }$$

• A) \(x ^ { 2 } - 81\)
• B) \(x + 9\)
• C) \(( x + 9 ) ( x - 9 ) ^ { 2 }\)
• D) \(( x + 9 ) \left( x ^ { 2 } - 81 \right)\)

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Definitions:

Expected Variance

A statistical measure that represents the dispersion of possible returns of an investment, used in portfolio theory to gauge risk.

Probability Distribution

A quantitative function that assesses and represents every imaginable value and probability for a random variable within a certain limit.

Stock of the Economy

An aggregate representation of the total value of all publicly traded companies within an economy.

Nominal Rate of Interest

The stated interest rate of a bond or loan without adjusting for inflation or other factors that affect the true cost of borrowing.