Find A· B
- $$\mathbf { a } = 4 \mathbf { i } + 6 \mathbf { j } , \quad \mathbf { b } = - 5 \mathbf { i } - 0.5 \mathbf { j }$$

question 204

Multiple Choice

Find a· b.
- $$\mathbf { a } = 4 \mathbf { i } + 6 \mathbf { j } , \quad \mathbf { b } = - 5 \mathbf { i } - 0.5 \mathbf { j }$$

• A) \(- 23\)
• B) \(\langle - 1,5.5 \rangle\)
• C) \(\langle - 20 , - 3 \rangle\)
• D) 17

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Definitions:

Independent Variables

These are factors in a model or experiment that are adjusted or classified to examine their influence on the outcomes measured by dependent variables.

Error Variable

A random variable in statistical models representing the amount by which an observed outcome deviates from the predicted outcome, due to unexplained or random effects.

Multiple Regression

Multiple regression is a statistical technique that uses several explanatory variables to predict the outcome of a response variable.

Probability Distribution

A mathematical equation that provides the probability values for different possible experiments' outcomes.