Solve the Problem $\varepsilon$ Of a Particular Thermoplastic Can Be Modeled Approximately by the Can

question 241

Multiple Choice

Solve the problem.
-The elasticity $\varepsilon$ of a particular thermoplastic can be modeled approximately by the relation $\varepsilon = \frac { 2.5 \times 10 ^ { 5 } } { \mathrm {~T} ^ { 2.3 } }$ , where $\mathrm { T }$ is the Kelvin temperature. If the thermometer used to measure $\mathrm { T }$ is accurate to $1 \%$ , and if the measured temperature is $478 \mathrm {~K}$ , how should the elasticity be reported?

• A) \(\varepsilon = \pm 0.004\)
• B) \(\varepsilon = 0.172 \pm 0.002\)
• C) \(\varepsilon = 0.172 \pm 0.004\)
• D) \(\varepsilon = 0.172\)

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Definitions:

Break-Even Analysis

A means of finding the point, in dollars and units, at which costs equal revenues.

Variable Costs

Costs that vary directly with the level of production or business activity, such as materials and labor.

Fixed Costs

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

Break-Even Point

The point at which total costs and total revenue are equal, meaning no net loss or gain, and one has "broken even."