Find $| \mathrm { v } |$ And $| \mathbf { u } + \mathbf { y } |$

question 54

Multiple Choice

Find $| \mathrm { v } |$ and $| \mathbf { u } + \mathbf { y } |$
, given that $\mathbf { u } = - \mathbf { j }$
And $\mathbf { v } = \mathbf { i }$

• A) \(| \mathrm { v } | = 1\)
• , \(| \mathbf { u } + \mathrm { v } | = \sqrt { 2 }\)
• B) \(| v | = - 1\)
• , \(| \mathbf { u } + \mathbf { v } | = - \sqrt { 2 }\)
• C) \(| \mathrm { v } | = \sqrt { 2 }\)
• , \(| \mathbf { u } + \mathbf { y } | = 1\)
• D) \(| \mathrm { v } | = \sqrt { 2 }\)
• , \(| \mathbf { u } + \mathrm { v } | = \sqrt { 2 }\)
• E)none

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Definitions:

Average Total Cost

The total cost of production divided by the quantity of output produced, representing the cost per unit.

Total Cost

The sum of all expenses incurred in the production of a good or service, including both fixed and variable costs.

Marginal Cost

The expense associated with manufacturing an extra unit of a product.

Average Total Cost

The total cost of production (fixed and variable costs combined) divided by the quantity of output produced.