Use the Dot Product to Find the Magnitude of U $\mathbf { u } = - 5 \mathbf { i } - 2 \mathbf { j }$

question 101

Multiple Choice

Use the dot product to find the magnitude of u if $\mathbf { u } = - 5 \mathbf { i } - 2 \mathbf { j }$

• A) \(\| \mathbf { u } \| =\) 10
• B) \(\| \mathbf { u } \| =\) \(2 \sqrt { 29 }\)
• C) \(\| \mathbf { u } \| = 7\)
• D) \(\| \mathbf { u } \| = 15\)
• E) \(\| \mathbf { u } \| =\) \(\sqrt { 29 }\)

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Definitions:

Intelligence Scores

Quantitative measures obtained from intelligence tests that aim to represent an individual's cognitive abilities relative to an average performance for a given age.

Heritability

A statistical measure that indicates how much of a trait's variation in a population can be attributed to genetic factors.

Genetic Contributions

The influence of genes passed from parents to offspring on an individual's traits and behaviors.

Intellectually Disabled

A term referring to individuals who have significant limitations in both intellectual functioning and in adaptive behavior.