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...
Related questions
Question
- Find F/ (x) (2x+3) (x+1)
a. A statistician used data to construct the model below
S(t)-21Ln t+2
where S(t) is the number of cable TV subscribers (in millions) in year t .
t=0 corresponds to 1980.
Use this model to estimate the following
The number of cable TV subscribers in 2015
S(t)=21Ln t+2
= 21[3.56]+2
= 76.76
b. The rate of change of the number of subscribers in 2015. Interpret this result.
DY/DX= S(t)= 21Ln t+2
= 21[1/T]+2
21[1/35]+2
21[0.0286]+2
0.6006+2= 2.6006
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