A ship headed due east is moving through the water at a constant speed of 18 miles per hour. However, the true course of the ship is 60°. If the currents are a constant 9 miles per hour, what is the ground speed of the ship? (Round your answer to the nearest whole number.)
Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
A ship headed due east is moving through the water at a constant speed of 18 miles per hour. However, the true course of the ship is 60°. If the currents are a constant 9 miles per hour, what is the ground speed of the ship? (Round your answer to the nearest whole number.)
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