Concept explainers
Halley's Cornel has an elliptical orbit with the Sun at one focus. Its orbit, shown in the figure below, is given approximately by
In the formula, r is measured in astronomical units. (One astronomical unit is the average distance from Earth to the Sun. approximately 93 million miles.) Use the given formula and the figure to solve Exercises 29-30. Round to the nearest hundredth of an astronomical unit and the nearest million miles.
Find the distance from Halley's Comet to the Sun at its shortest distance from the Sun.

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Chapter 10 Solutions
EP ALGEBRA+TRIGONOMETRY-MYLAB-ACCESS
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