Use the Table and the Given X-Ray Absorption Diagrams to Identify

question 21

Multiple Choice

Use the table and the given X-ray absorption diagrams to identify the composition of each of the regions marked by a letter. The number in each region shows its absorption, and the number on each X-ray beam shows the total absorption for that beam. $$\begin{array} { | l | l | l | l | l | l | l | } \hline \text { Type } & \text { Air } & \text { Water } & \text { Gray matter } & \text { Tumor } & \text { Blood } & \text { Bone } \\\hline \text { Absorption } & 0 & 1,000 & 1,020 & 1,030 & 1,050 & 2,000 \\\hline\end{array}$$ $a = 4050$ , $b = 5130$ , $c = 8000$ , $d = 3020$

• A) \(\begin{array} { l } x = \text { Blood } \\ y = \text { Bone } \\ z = \text { Gray matter } \\ u = \text { Water } \end{array}\)
• B) \(\begin{array} { l } x = \text { Bone } \\ y = \text { Tumor } \\ z = \text { Water } \\ u = \text { Gray matter } \end{array}\)
• C) \(\begin{array} { l } x = \text { Tumor } \\ y = \text { Bone } \\ z = \text { Water } \\ u = \text { Gray matter } \end{array}\)
• D) \(\begin{array} { l } x = \text { Tumor } \\ y = \text { Water } \\ z = \text { Bone } \\ u = \text { Gray matter } \end{array}\)
• E) \(\begin{array} { l } x = \text { Blood } \\ y = \text { Bone } \\ z = \text { Water } \\ u = \text { Gray matter } \end{array}\)

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Definitions:

Income Taxes

Taxes that individuals or entities pay on the money they earn over a certain period, typically a year.

Annually Balanced Budget

A financial statement showing that projected government revenues equal expected expenditures on an annual basis.

Destabilize

To cause a system, situation, or environment to become unstable or out of balance.

Economy

The large set of interrelated production, consumption, and exchange activities that aid in determining how scarce resources are allocated.