The amount $A$ , in grams, of a radioactive substance remaining after years is given by $A = 14 \times 0.55 ^ {t}$ What is the limiting value for the amount of the radioactive substance?
A) About 0.55 grams
B) About 14 grams
C) About 14.55 grams
D) 0 grams

Question

The amount $A$ , in grams, of a radioactive substance remaining after  years is given by $A = 14 \times 0.55 ^ {t}$ What is the limiting value for the amount of the radioactive substance?
A) About 0.55 grams 
B) About 14 grams 
C) About 14.55 grams 
D) 0 grams

Quizplus · Accepted Answer

As time approaches infinity, the exponent in the expression approaches negative infinity, making the whole expression approach zero. So the limiting value for the amount of the radioactive substance is 0 grams.

The Amount AAA , in Grams, of a Radioactive Substance Remaining After

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