The Amount $A$ , in Grams, of a Radioactive Substance Remaining After

question 14

Multiple Choice

The amount $A$ , in grams, of a radioactive substance remaining after years is given by $A = 19 \times 0.67 ^ { t }$ What is the limiting value for the amount of the radioactive substance?

• A) About 0.67 grams
• B) About 19 grams
• C) About 19.67 grams
• D) 0 grams

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