Select the Correct Answer: for Each Question

question 135

Multiple Choice

Select the correct Answer: for each question.
-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 cm.Find an equation of the parabola.Let be the origin.Find the diameter of the opening cm from the vertex.

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Definitions:

Direct Costs

Expenses that can be directly attributed to the production of specific goods or services, such as materials and labor.

Fixed Costs

Expenses that do not change with the level of production or sales, such as rent, salaries, and insurance.

Utility

The total satisfaction or value derived from consuming goods or services, often considered in economic decisions and analyses.

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of data values.