Choose the One Alternative That Best Completes the Statement or Answers

question 296

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-Strontium 90 decays at a constant rate of $2.44 \%$ per year. Therefore, the equation for the amount $\mathrm { P }$ of strontium 90 after $t$ years is $\mathrm { P } = \mathrm { P } _ { 0 } \mathrm { e } ^ { - 0.0244 \mathrm { t } }$ . How long will it take for 15 grams of strontium to decay to 5 grams? Round answer to 2 decimal places.

• A) \(40.50\) years
• B) \(450.25\) years
• C) \(45.03\) years.
• D) \(4.50\) years

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Definitions:

Proximity And Distance

Factors related to how physical closeness or spatial distance between people influences their interactions and relationships.

Failure Event

refers to a significant incident or situation where expectations are not met, leading to perceived loss, disappointment, or negative outcomes in relation to goals or standards.

Reproach

To express disapproval or disappointment towards someone, usually related to a specific action or behavior.

Hypothetical Situation

A scenario or problem devised for analysis or problem-solving, not based on real events but used for discussion purposes.