There was a sample of300milligrams of a radioactive

Answered question

2022-03-28

There was a sample of

300

milligrams of a radioactive substance to start a study. Since then, the sample has decayed by

2.3%

each year.

 

Let

t

be the number of years since the start of the study. Let

y

be the mass of the sample in milligrams.

 

Write an exponential function showing the relationship between

y

and

t

.

Answer & Explanation

user_27qwe

user_27qwe

Skilled2022-04-21Added 375 answers

y0=300

r=2.3%-0.023

y=y0(1-r)t

=300(1-0.023)t

y=300(0.977)t

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