Use the Accompanying Diagram, Which Contains Two Similar Triangles

question 5

Multiple Choice

$\begin{array}{|l|c|c|}\hline {\text { Item }} & \text { Quantity Needed } & \text { Cost } \\\hline 8 \text { Spark plugs } & 1 \text { set } & \$ 31.84 \\\text { Spark plug wires } & 1 \text { set } & \$ 73.92 \\\text { Distributor cap } & 1 & \$ 24.16 \\\text { Rotor } & 1 & \$ 9.10 \text { each } \\\text { Labor } & \text { Flat rate } & \$ 80.00 \\5 \% \text { sales tax on } & & \\\text { parts only } & & \\\hline\end{array}$ Use the accompanying diagram, which contains two similar triangles. If side a is 2 inches, side b is 9 inches, and side B is 18 inches, find side A in inches.

• A) 3
• B) 4
• C) 5
• D) 6

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Definitions:

Risk-Free Asset

A risk-free asset refers to an investment that theoretically provides a certain return with no risk of financial loss.

Risky Asset

An asset that has a significant degree of uncertainty in its returns, often leading to higher potential rewards and higher potential losses.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the individual data points differ from the mean.

Expected Rate

The anticipated return on an investment, factoring in the probability of various outcomes, including risks and rewards.