Choose the One Alternative That Best Completes the Statement or Answers

question 41

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-A sample of 650 grams of radioactive substance decays according to the function $\mathrm { A } ( \mathrm { t } ) = 650 \mathrm { e } ^ { - .038 \mathrm { t } }$ , where $t$ is the time in years. How much of the substance will be left in the sample after 20 years? Round your answer to the nearest whole gram.

• A) \(304 \mathrm {~g}\)
• B) \(294 \mathrm {~g}\)
• C) \(1 \mathrm {~g}\)
• D) \(0 \mathrm {~g}\)

---

Definitions:

Information

Data, facts, or knowledge provided or learned about something or someone.

Consciously Ratifies

The act of officially approving or confirming a decision or agreement with full awareness.

Ratified

Formally approved or confirmed, often in the context of contracts or agreements to signify official validation.

Information

Data or knowledge communicated or received concerning a particular fact or circumstance.