After an accident at a nuclear power plant, which caused a radiation leak, the radiation level at the accident site was 950 R (roentgens). Five hours later, the radiation level was 800 R. Radiation levels decay exponentially. Calculate the decay rate.
After an accident at a nuclear power plant, which caused a radiation leak, the radiation level at the accident site was 950 R (roentgens). Five hours later, the radiation level was 800 R. Radiation levels decay exponentially. Calculate the decay rate.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
Problem 15T
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Transcribed Image Text:After an accident at a nuclear power plant, which caused a radiation leak, the radiation level at the
accident site was 950 R (roentgens). Five hours later, the radiation level was 800 R. Radiation levels
decay exponentially. Calculate the decay rate.
Matt bought a new car for $35 000 and sold it five years later to Martin for $20 000. Assume that the
value of the vehicle depreciates exponentially at a rate of 12%/year. Who got ripped off? By how
much?
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