Give an Appropriate Answer $f ( x , y ) = x y e ^ { - y }$

question 183

Multiple Choice

Give an appropriate answer.
- $f ( x , y ) = x y e ^ { - y }$

• A) \(\frac { \partial f } { \partial x } = y ^ { - y } ; \frac { \partial f } { \partial y } = - x y e ^ { - y }\)
• B) \(\frac { \partial f } { \partial x } = y e ^ { - y ; } \frac { \partial f } { \partial y } = x e ^ { - y } ( 1 - y )\)
• C) \(\frac { \partial f } { \partial x } = y e ^ { - y } ; \frac { \partial f } { \partial y } = x e ^ { - y }\)
• D) \(\frac { \partial f } { \partial x } = y e ^ { - y } ; \frac { \partial f } { \partial y } = x e ^ { - y } ( y - 1 )\)

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Definitions:

Adjusted Trial Balance

An enumeration of every account and its balance following adjustment entries, employed in the development of financial reports.

Retained Earnings

The amount of net earnings not paid out as dividends but retained by the company to be reinvested in its core business or to pay debt.

Closing Entries

At the conclusion of an accounting period, entries recorded to shift balances from temporary to permanent accounts, effectively zeroing out the temporary accounts for the upcoming period.

Post-Closing Trial Balance

A list of all accounts and their balances after closing entries are made, showing that debits equal credits.