Given $\mathbf { u } = 5 \mathbf { i } - 3 \mathbf { j }$

question 34

Multiple Choice

Given $\mathbf { u } = 5 \mathbf { i } - 3 \mathbf { j }$ and $\mathbf { v } = \mathbf { i } + 2 \mathbf { j }$ ,determine $9 \mathbf { u } - 3 \mathbf { v }$ .

• A)? \(9 \mathbf { u } - 3 \mathbf { v } = 39 \mathrm { i } - 39 \mathrm { j }\)
• B)? \(9 \mathbf { u } - 3 \mathbf { v } = 3 \mathbf { i } + 3 \mathbf { j }\)
• C)? \(9 \mathbf { u } - 3 \mathbf { v } = 42 \mathbf { i } - 33 \mathbf { j }\)
• D)? \(9 \mathbf { u } - 3 \mathbf { v } = - 6 \mathbf { i } + 39 \mathbf { j }\)
• E)? \(9 \mathbf { u } - 3 \mathbf { v } = - 30 \mathbf { i } + 39 \mathbf { j }\)

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Definitions:

CH4

Methane, a colorless, odorless flammable gas that is the simplest alkane and a main component of natural gas.

Arithmetic Logic Unit

A digital circuit used in computers and calculators to perform arithmetic and logic operations.

Front Side Bus

A data bus that carries information between the CPU and a memory controller hub, known as the northbridge, in a computer's chipset.

Control Unit

Unit of the CPU that manages the switches inside the CPU.