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A lamp has the shape of a parabola when viewed from the side. The light source (which is at the focus) is 4 centimeters from the bottom of the lamp and the lamp is 25 centimeters deep. How wide is the lamp? ? cm ? cm «-а, 25) Ma, 25) |(0, 4) 25 cm 4 cm Light ... (0, 0) 4 cm source 25 cm ст

A lamp has the shape of a parabola when viewed from the side. The light source (which is at the focus) is 4 centimeters from the bottom of the lamp and the lamp is 25 centimeters deep. How wide is the lamp? ? cm ? cm «-а, 25) Ma, 25) |(0, 4) 25 cm 4 cm Light ... (0, 0) 4 cm source 25 cm ст

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A lamp has the shape of a parabola when viewed from the side. The light source (which is at the focus) is 4 centimeters from the bottom of the lamp and the lamp is 25 centimeters deep. How wide is the lamp? ? cm (-а, 25) (a, 25) ? cm |(0, 4) 25 cm 4 cm Light (0, 0) source 4 cm 25 cm cm
Transcribed Image Text:A lamp has the shape of a parabola when viewed from the side. The light source (which is at the focus) is 4 centimeters from the bottom of the lamp and the lamp is 25 centimeters deep. How wide is the lamp? ? cm (-а, 25) (a, 25) ? cm |(0, 4) 25 cm 4 cm Light (0, 0) source 4 cm 25 cm cm
A satellite dish has the shape of a parabola when viewed from the side. The dish is 56 inches wide and 49 inches deep. How far is the receiver from the bottom of the dish if the receiver is placed at the focus? y 49 in 56 in 56 in (-28, 49) (28, 49) 49 in Receiver ? in ? in (0, 0) in
Transcribed Image Text:A satellite dish has the shape of a parabola when viewed from the side. The dish is 56 inches wide and 49 inches deep. How far is the receiver from the bottom of the dish if the receiver is placed at the focus? y 49 in 56 in 56 in (-28, 49) (28, 49) 49 in Receiver ? in ? in (0, 0) in
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