Solve problems involving antiditerentiation Solve situational problems involving exponential gro

Kaydence Huff

Kaydence Huff

Answered question

2022-01-30

Solve problems involving antiditerentiation
Solve situational problems involving exponential growth and decay
1. The rate of decay of radium is said to be proportional to the amount of radium present. If the half-life of radium is 1690 years and there are 200 grams on hand now, how much radium will be present in 845 years?

Answer & Explanation

votaren10

votaren10

Beginner2022-01-31Added 11 answers

1. Half life of radium = 1690year = t12
Current amount= 200 gm = m0
m(t)=m0(0.5)tt12
m(t)=200(0.5)t1690
For t=845
m(845)=200(0.5)845{1690}
=200 x 0× 707107
m(845)=141×421356gm
radium left after 845 years = 141×421356gm

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