Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Question
Answer 3 and 4
![3. Find an equation of a parabola with a vertex at the origin and directrix y=-3.5
1
Oy=-L
14
1
Oy= L
14
Ox= -
14
Ox=-L,
14
4. The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola.
The microphone itself is placed on the focus of the parabola. the parabola is 40 inches wide
and 20 inches deep, how far from the vertex should the microphone be placed?
04 inches
05 inches
O8 inches
O10 inches](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fefe12bcb-5baa-4860-97d8-68159d8e6101%2Fbb168e9d-efad-454c-aa54-b83048e1cfd9%2F0lks8hf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. Find an equation of a parabola with a vertex at the origin and directrix y=-3.5
1
Oy=-L
14
1
Oy= L
14
Ox= -
14
Ox=-L,
14
4. The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola.
The microphone itself is placed on the focus of the parabola. the parabola is 40 inches wide
and 20 inches deep, how far from the vertex should the microphone be placed?
04 inches
05 inches
O8 inches
O10 inches
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