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- For Ricardo, who walks 22 m at 60° west of north:
- The angle from the positive x-axis (east) is 90° + 60° = 150°.
- Using trigonometry, we find his coordinates:
- \( x_R = 22 \cos(150°) = 22 \cos(150°) = 22 \times -\frac{\sqrt{3}}{2} =
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