Please help me with my homework, I don't know how to do any of it. These are the last three problems that I have been stuck on for hours.
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. If the parabola is 24 inches wide and 4 inches deep, how far from the vertex should the microphone be placed?
A. 4 inches
B. 18 inches
C. 9 inches
D. 12 inches

What is the equation of the parabola with vertex (3, 4) and focus (6, 4)?

How far apart are the foci of an ellipse with a major axis of 26 feet and a minor axis of 24 feet?

Question

Please help me with my homework, I don't know how to do any of it. These are the last three problems that I have been stuck on for hours.
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. If the parabola is 24 inches wide and 4 inches deep, how far from the vertex should the microphone be placed?
A. 4 inches
B. 18 inches
C. 9 inches
D. 12 inches

What is the equation of the parabola with vertex (3, 4) and focus (6, 4)?

How far apart are the foci of an ellipse with a major axis of 26 feet and a minor axis of 24 feet?

anonymous · Answer

Um, ok then

anonymous · Answer

you know what? fu‌ck all of this. i will just guess ._.