scientist begins with 525 mg of a radioactive substance. After 3 hours, the sample has

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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A scientist begins with 525 mg of a radioactive substance. After 3 hours, the sample has decayed to 100 grams. Assume that the amount of substance remaining follows the exponential decay model.

To the nearest hundredth of an hour, how long will it take for the substance to decay to 25 mg?

Solve the equation 25*-6.5* = - 8.
O
a.)
b.)
X =
In4
In5
In 2
In 5
X
In 4
In 5
4
c.) x = in.x = n²/
d.) x = 2, x = 4
Transcribed Image Text:Solve the equation 25*-6.5* = - 8. O a.) b.) X = In4 In5 In 2 In 5 X In 4 In 5 4 c.) x = in.x = n²/ d.) x = 2, x = 4
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