Rationalize the Denominator $$\frac { 5 \sqrt { x } } { \sqrt { x } - 5 \sqrt { y } }$$

question 611

Multiple Choice

Rationalize the denominator. Assume that all variables represent nonnegative numbers and that the denominator is not
zero.
- $$\frac { 5 \sqrt { x } } { \sqrt { x } - 5 \sqrt { y } }$$

• A) \(\frac { 5 \sqrt { x } ( \sqrt { x } - 5 \sqrt { y } ) } { x + 25 y }\)
• B) \(\frac { 5 \sqrt { x } ( \sqrt { x } + 5 \sqrt { y } ) } { x - 5 y }\)
• C) \(\frac { 5 \sqrt { x } ( \sqrt { x } + 5 \sqrt { y } ) } { x - 25 y }\)
• D) \(\frac { 5 \sqrt { x } ( \sqrt { x } + 5 \sqrt { y } ) } { x + 5 y }\)

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Definitions:

Best Case Scenario

The most favorable or desirable outcome possible in a given situation.

Worst Case Scenario

the most adverse condition or outcome that can reasonably be projected.

Base Case

The default scenario in scenario analysis, used as a benchmark to compare the outcomes of alternative assumptions or actions.

NPV

Net Present Value, a calculation used to assess the profitability of an investment by summing the present values of all expected future cash flows minus the initial investment cost.