If Vector $\vec { B }$ Is Added to Vector $\overrightarrow { \mathrm { A } }$

question 55

Multiple Choice

If vector $\vec { B }$ is added to vector $\overrightarrow { \mathrm { A } }$ ,the result is $6 \tilde { \mathbf { i } } + \hat { \mathbf { j } }$ .If $\vec { B }$ is subtracted from $\overrightarrow { \mathrm { A } }$ ,the result is $$- 4 \tilde { \mathbf { i } } + 7 \tilde { \mathbf { j } }$$ .What is the magnitude of $\overrightarrow { \mathrm { A } }$ ?

• A)5.1
• B)4.1
• C)5.4
• D)5.8
• E)8.2

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