Answer:
For this case we can model the problem as a rectangle triangle.
 We know:
 Length of the hypotenuse
 Angle between the base of the triangle and the hypotenuse.
 We want to know:
 Length of the base.
 For this we use the following trigonometric relationship:
 cos (15) = \frac{x}{500}cos(15)=500x
 Clearing x we have:
 x = 500 * cos (15) x = 482.96x=500∗cos(15)x=482.96
 Rounding to the nearest tenth of a meter:
 x = 483.0 mx=483.0m
 Answer:
 The horizontal distance she has covered is:
 x = 483.0 mx=483.0m
