Use the Dot Product to Find the Magnitude of U $\mathbf { u } = 35 \mathbf { i } + 40 \mathbf { j }$

question 21

Multiple Choice

Use the dot product to find the magnitude of u. $\mathbf { u } = 35 \mathbf { i } + 40 \mathbf { j }$

• A)40
• B) \(\sqrt { 2829 }\)
• C) \(\sqrt { 2823 }\)
• D) \(5 \sqrt { 113 }\)
• E)35

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