If $\overrightarrow { \mathbf { A } } = 12 \hat { \mathbf { i } } - 16 \hat { \mathbf { j } }$

question 31

Multiple Choice

If $\overrightarrow { \mathbf { A } } = 12 \hat { \mathbf { i } } - 16 \hat { \mathbf { j } }$ and $\overrightarrow { \mathbf { B } } = - 24 \hat { \mathbf { i } } + 10 \hat { \mathbf { j } }$ ,what is the magnitude of the vector $\overrightarrow { \mathrm { C } } = 2 \overrightarrow { \mathrm { A } } - \overrightarrow { \mathrm { B } }$ ?

• A)42
• B)22
• C)64
• D)90
• E)13

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Definitions:

Checkout times

The duration or period it takes for a customer to complete a purchase transaction from start to finish.

Confidence interval

A range of values, derived from sample data, that is believed to contain the true value of a population parameter with a certain probability.

SAT scores

Scores resulting from the Scholastic Assessment Test, a standardized test widely used for college admissions in the United States.