In the Lup-Dup Sound of a Beating Heart,which of the Following

question 81

Multiple Choice

In the lup-dup sound of a beating heart,which of the following make the first heart sound?

• A) closing of the atrioventricular valves
• B) closing of the pulmonary valve
• C) closing of the aortic valve
• D) the contraction of the left ventricle
• E) the contraction of the right ventricle

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Definitions:

High-Low Method

A technique used in cost accounting to estimate variable and fixed costs by analyzing the highest and lowest levels of activity and their associated costs.

Variable Cost

Variable costs are expenses that vary directly with the level of production or sales volume, such as raw materials and packaging.

Fixed Cost

Expenses that do not change in proportion to the level of goods or services produced by a business.

Contribution Format

An income statement format that separates fixed and variable costs and expenses, used to determine contribution margin.