An inverted conical water tank with a height of 10 ft and a radius of 5 ft is drained through a hole in the vertex at a rate of 7 ft° / s (see figure). What is the rate of change of the water depth when the water depth is 3 ft? (Hint. Use similar triangles.)
An inverted conical water tank with a height of 10 ft and a radius of 5 ft is drained through a hole in the vertex at a rate of 7 ft° / s (see figure). What is the rate of change of the water depth when the water depth is 3 ft? (Hint. Use similar triangles.)
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter6: Trigonometric Functions: Unit Circle Approach
Section6.6: Modeling Harmonic Motion
Problem 61E
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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.
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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.
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