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A lamp with a parabolic reflector is shown in the figure. The bulb is placed at the focus, and the latus rectum is 12 cm.   Find an equation of the parabola Find the diameter of the opening, 29 cm from the vertex

A lamp with a parabolic reflector is shown in the figure. The bulb is placed at the focus, and the latus rectum is 12 cm.   Find an equation of the parabola Find the diameter of the opening, 29 cm from the vertex

Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter25: Achievement Review—section Two
Section: Chapter Questions
Problem 25AR: Engine pistons and cylinder heads are made of an aluminum casting alloy that contains 4% silicon,...
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  1. A lamp with a parabolic reflector is shown in the figure. The bulb is placed at the focus, and the latus rectum is 12 cm.

 

  • Find an equation of the parabola
  • Find the diameter of the opening, 29 cm from the vertex.
6 сm 20cm FA 6 cm B. D. 4.
Transcribed Image Text:6 сm 20cm FA 6 cm B. D. 4.
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