If an appliance is used for a total of N hours, then its value V (in hundreds of dollars) is given by the function 2N + 820\ 2/3 V(N) = (N+2 Furthermore, suppose that the total number of hours N that the appliance has been used is based on the number of years t it has been in operation, in such a way that N(t) = 120t – 16t3/2. 1. What is the initial value of the appliance? Give an approximation with two signifi- cant digits. 2. We stop using the appliance after a total of 1000 hours. How many years does this correspond to? You can use a calculator to find this, but give the exact number. What is the value of the appliance at this point? Give an approximation with two significant digits.
If an appliance is used for a total of N hours, then its value V (in hundreds of dollars) is given by the function 2N + 820\ 2/3 V(N) = (N+2 Furthermore, suppose that the total number of hours N that the appliance has been used is based on the number of years t it has been in operation, in such a way that N(t) = 120t – 16t3/2. 1. What is the initial value of the appliance? Give an approximation with two signifi- cant digits. 2. We stop using the appliance after a total of 1000 hours. How many years does this correspond to? You can use a calculator to find this, but give the exact number. What is the value of the appliance at this point? Give an approximation with two significant digits.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
Problem 64E
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