A Cross-Section of a Parabolic Reflector Is Shown in the Figure

question 10

Multiple Choice

A cross-section of a parabolic reflector is shown in the figure. The bulb is located at the focus and the opening at the focus is $18 \mathrm {~cm}$ . Find an equation of the parabola. Let $V$ be the origin. Find the diameter of the opening $| C D | , 19 \mathrm {~cm}$ from the vertex.

• A) \(| C D | = 6 \sqrt { 38 }\)
• B) \(| C D | = 18\)
• C) The equation is \(y = 18 x ^ { 2 }\)
• D) \(| C D | = 4 \sqrt { 414 }\)
• E) The equation is \(y ^ { 2 } = 18 x\)
• F) The equation is \(y ^ { 2 } - \frac { x ^ { 2 } } { 18 } = 1\)

Apply infection control measures for airborne, droplet, contact precautions, and isolation practices.

Implement proper procedures for disposal of infectious materials and use of personal protective equipment (PPE).

Recognize the role of the healthcare environment and healthcare worker practices in the transmission and prevention of infections.

Apply principles of medical asepsis and infection prevention in healthcare settings.

---

Definitions:

Water

A transparent, tasteless, odorless, and nearly colorless chemical substance that is essential for all known forms of life and is used in many industrial processes.

Music CDs

Digital optical disc data storage formats used primarily to store and playback music and audio recordings.

DVDs

Digital Versatile Discs, a type of optical storage media used for holding video, audio, and other data, which have now largely been superseded by streaming services.

Income

The financial gain received by an individual or entity, typically through work, investments, or other revenue sources.