Solve. -The Decay of 331 Mg of an Isotope Is Given

question 118

Multiple Choice

Solve.
-The decay of 331 mg of an isotope is given by where t is time in years. Find the amount left after 9 years.

• A) 321
• B) 253
• C) 245
• D) 127

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Definitions:

Assembly Worker

An individual employed in the manufacturing sector whose primary role involves assembling components or products.

Mixed Costs

Expenses that have both a fixed and a variable component, changing with the level of production or sales activity but also including a constant element.

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.