The amount $A$ , in grams, of a radioactive substance remaining after years is given by $A = 15 \times 0.71 ^ {t }$ What is the limiting value for the amount of the radioactive substance?
A) About 0.71 grams
B) About 15 grams
C) About 15.71 grams
D) 0 grams

Question

The amount $A$ , in grams, of a radioactive substance remaining after  years is given by $A = 15 \times 0.71 ^ {t }$ What is the limiting value for the amount of the radioactive substance?
A) About 0.71 grams 
B) About 15 grams 
C) About 15.71 grams 
D) 0 grams

Quizplus · Accepted Answer

The limiting value is the value that the function approaches as time goes to infinity. As the base of the exponential function is less than 1, it will approach 0 as time goes to infinity. Therefore, 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