Find the magnitude and direction of the vector. Round the length to the nearest tenth and the degree to the nearest unit. The diagram is not drawn to scale.

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anonymous · Answer

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mathmale · Answer

The red ray represents a vector.  What is the x-component of this vector?  What is the y-component?

Have you a formula for calculating the magnitude of a vector?  Hint:  It's the same as the distance formula.

Have you a formula for calculating the central angle of a triangle (such as you have in the diagram) when the vertical and horiz. components of the vector are given?

anonymous · Answer

I don't think we have gotten those formula's. I'll have to look

mathmale · Answer

If you spend much time with vector calculus, you'll need those formulas often.

anonymous · Answer

The distance formula says that distance equals the square root of (x2-x1) squared plus (y2-y1) squared. I don't have the formula for calculating the central angle of a Triangle