Note: the Solutions to Most of the Multiple Choice Questions $\begin{array} {| l | }\hline \alpha\\\hline \text {1 }\\\hline \text {0 }\\\hline\end{array}$

question 67

Essay

Note: the solutions to most of the multiple choice questions in these sections use what call the standard assignment of truth values to atomic propositions. The standard assignment of truth values assigns the values given here to the variables in the wffs in the exercises, when read left to right. So, the first variable in the formula read left to right gets the α assignment; the second variable in the formula read left to right (if any) gets the β assignment; the third variable in the formula read left to right (if any) gets the γ assignment; and the fourth variable in the formula read left to right (if any) gets the δ assignment.
For exercises with only one propositional variable, the standard assignment is:
$\begin{array} {| l | }\hline \alpha\\\hline \text {1 }\\\hline \text {0 }\\\hline\end{array}$

For exercises with two propositional variables, the standard assignment is:
$$\begin{array} { | c | c | } \hline \mathbf { n } & \boldsymbol { \beta } \\\hline 1 & 1 \\\hline 1 & 0 \\\hline 0 & 1 \\\hline 0 & 0 \\\hline\end{array}$$
For exercises with three propositional variables, the standard assignment is:
$$\begin{array} { | c | c | c | } \hline \alpha & \beta & \gamma \\\hline 1 & 1 & 1 \\\hline 1 & 1 & 0 \\\hline 1 & 0 & 1 \\\hline 1 & 0 & 0 \\\hline 0 & 1 & 1 \\\hline 0 & 1 & 0 \\\hline 0& 0 & 1 \\\hline 0 & 0 &0\\\hline\end{array}$$
For exercises with four propositional variables, the standard assignment is:
$\begin{array}{|c|c|c|c|}\hline\alpha & \beta & \gamma & \delta \\\hline 1 & 1 & 1 & 1 \\\hline 1 & 1 & 1 & 0 \\\hline 1 & 1 & 0 & 1 \\\hline 1 & 1 & 0 & 0\\\hline 1 & 0 & 1 & 1 \\\hline 1 & 0 & 1 & 0 \\\hline 1 & 0 & 0 & 1 \\\hline 1 & 0 & 0 & 0 \\\hline 0 & 1 & 1 & 1 \\\hline 0 & 1 & 1 & 0 \\\hline 0 & 1 & 0 & 1\\\hline 0 & 1 & 0 & 0 \\\hline 0 & 0 & 1 & 1 \\\hline 0 & 0 & 1 & 0 \\\hline 0 & 0 & 0 & 1 \\\hline 0 & 0 & 0 & 0\\\hline\end{array}$
Complete truth tables for each of the following propositions.
-(?C ? ?D) ? [D ? (C ? D)]

---

Definitions:

Period Costs

Selling and administrative expenses incurred in marketing the product, delivering the product, or managing the company and not directly related to manufacturing the product.

Fixed Costs

Expenses that do not change in total regardless of changes in the volume of goods or services produced or sold.

Variable Costs

Costs that change in proportion to the level of production or business activity, such as raw materials and direct labor costs.

Variable Cost

Spending that rises and falls according to how much is produced or sold, including costs for labor and materials.