1 mile equals approximately 1.6 kilometers. Approximately how many kilometers are in 4 miles? A) 4 kilometers B) 6 kilometers C)
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Try this option (see the attached picture):
1. to determine an equation of line y₁, which ⊥y and includes point a(0;5);
2. to calculate intersection point of y and y₁ (point B);
3. to calculate distance between the point A and B, using vectors properties.
