Use the Vectors U and V to Find U · $\mathbf { u } = 6 - \mathbf { j } + 7 \mathbf { k } \quad \mathbf { v } = 5 \mathbf { i } + 5 \mathbf { j } - \mathbf { k }$

question 137

Multiple Choice

Use the vectors u and v to find u · (u × v) . $\mathbf { u } = 6 - \mathbf { j } + 7 \mathbf { k } \quad \mathbf { v } = 5 \mathbf { i } + 5 \mathbf { j } - \mathbf { k }$

• A) \(\mathbf { u } ( \mathbf { u } \times \mathbf { v } ) = 10\)
• B) \(\mathbf { u } ( \mathbf { u } \times \mathbf { v } ) = - 10\)
• C) \(\mathbf { u } \cdot ( \mathbf { u } \times \mathbf { v } ) = 9\)
• D) \(\mathbf { u } \cdot ( \mathbf { u } \times \mathbf { v } ) = - 9\)
• E) \(\mathbf { u } \cdot ( \mathbf { u } \times \mathbf { v } ) = 0\)

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Definitions:

Debit Balance

An accounting entry that represents a situation where debits exceed credits in an account, indicative of assets or expenses.

Adjusting Entry

A journal entry made in accounting records to update the balances of accounts at the end of an accounting period, ensuring that revenues and expenses are matched accurately.

Aging

A method used to categorize and manage accounts receivable based on the length of time they have been outstanding.

Accounts Receivable

Amounts owed to a company by its customers for goods or services delivered or used but not yet paid for.