A cyclist travels 5 miles in the direction N 30° E, then travels 3 miles in the direction N 70° E. Which equation measures the cyclist’s distance, x, from the starting point?

Question

Revolt · Accepted Answer

x2 = 52 + 32 – 2(5)(3)cos(140°)

Modeling with Rational Functions — Unit test

A cyclist travels 5 miles in the direction N 30° E, then travels 3 miles in the direction N 70° E. Which equation measures the cyclist’s distance, x, from the starting point?

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