dN A chemical substance has a decay rate of 8.9% per day. The rate of change of an amount N of the chemical after t days is given by dt a) Let No represent the amount of the substance present at t= 0. Find the exponential function that models the decay. b) Suppose that 400 g of the substance is present at t=0. How much will remain after 5 days? c) What is the rate of change of the amount of the substance after 5 days? d) After how many days will half of the original 400 g of the substance remain? a) N(t)= = -0.089N.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter4: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 11T: Suppose that $12,000 is invested in a saving account paying 5.6% interest per year. (a)Write the...
icon
Related questions
Question
dN
A chemical substance has a decay rate of 8.9% per day. The rate of change of an amount N of the chemical after t days is given by
dt
a) Let No represent the amount of the substance present at t = 0. Find the exponential function that models the decay.
b) Suppose that 400 g of the substance is present at t = 0. How much will remain after 5 days?
c) What is the rate of change of the amount of the substance after 5 days?
d) After how many days will half of the original 400 g of the substance remain?
a) N(t)=
= -0.089N.
Transcribed Image Text:dN A chemical substance has a decay rate of 8.9% per day. The rate of change of an amount N of the chemical after t days is given by dt a) Let No represent the amount of the substance present at t = 0. Find the exponential function that models the decay. b) Suppose that 400 g of the substance is present at t = 0. How much will remain after 5 days? c) What is the rate of change of the amount of the substance after 5 days? d) After how many days will half of the original 400 g of the substance remain? a) N(t)= = -0.089N.
Expert Solution
steps

Step by step

Solved in 4 steps with 3 images

Blurred answer
Recommended textbooks for you
College Algebra
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Intermediate Algebra
Intermediate Algebra
Algebra
ISBN:
9780998625720
Author:
Lynn Marecek
Publisher:
OpenStax College
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781938168383
Author:
Jay Abramson
Publisher:
OpenStax