Calculus

The number N of US cellular phone subscribers (in millions) is shown in the table. (Midyear estimates are given.)
t 1996 1998 2000 2002 2004 2006
N 44 69 109 141 182 233

(a) Find the average rate of cell phone growth between the following years. In each case, include the units. (Round your answers to one decimal place.)
(i) from 1996 to 2004
million phones/yr

(ii) from 2002 to 2004
million phones/yr

(iii) from 2000 to 2002
million phone/yr

(b) Estimate the instantaneous rate of growth in 2002 by taking the average of the two average rates of change in (ii) and (iii). What are its units?
______million phones/yr

  1. 👍 0
  2. 👎 0
  3. 👁 589
  1. (I) 18.8
    (II) 16
    (III) 20
    (b) 18

    1. 👍 0
    2. 👎 0
    posted by Cristal
  2. k9009

    1. 👍 0
    2. 👎 0
  3. Rt

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Mathematics

    Since the beginning of satellite radio in 2001, the number of satellite radio subscribers has been growing very quickly. At the end of 2001, the total number of subscribers to XM Satellite radio was 27,733. By the end of 2005, the

    asked by Daisy on November 6, 2010
  2. Math1

    In 1985, there were 285 cell phone subscribers in the same small town of Centerville. The number of subscribers increased by 75% per year after 1985. How many cell phone subscribers were in 1994?

    asked by Jordan on March 22, 2017
  3. Statistics

    Cellular Phone Sales The probability that a cellular phone company kiosk sells X number of new phone contracts per day is shown below. Find the mean, variance, and standard deviation for this probability distribution. X 4 5 6 8 10

    asked by Victor on April 10, 2012
  4. Algebra 2

    For the period 1990-2002, the number s (in thousands)lf cellular telephone subscribers in the United States can be modified by S=858t^2 + 1412t + 4982 where t is the number of years since 1990. In what year did the number of

    asked by Krystal on September 24, 2013
  5. Calculus

    A telecommunications company has 50,000 units of mobile cellular subscribers and charges P8.00 per minute of voice calls. The officials believe that if the charge is reduced, the number of subscribers will increase at the rate of

    asked by Xiugine on February 25, 2016
  6. Geometry

    Williamston Daily is a new daily newspaper. When they first started printing three years ago they had 5700 home delivery subscribers. The number of subscribers increases by 67 every month. Write an equation that shows the

    asked by aleah on November 22, 2009
  7. math words problem

    Williamston Daily is a new daily newspaper. When they first started printing three years ago they had 5600 home delivery subscribers. The number of subscribers increases by 71 every month. Write a linear model that represents the

    asked by Anonymous on December 5, 2013
  8. calculus

    a dvision of sellier industries manufacturers the perfect model cellular phone. the daily cost (in dollars) of producing these cellular phones is C(x) = 0.0002x^3-0.06x^2+120x+5000 where x stands for the number of units produced

    asked by petal on May 1, 2011
  9. Math

    A television company agrees to establish a community antenna in a new suburb at a charge of $5 each for 1000 subscribers or less.To encourage more subscribers,it is agreed to give a discount of $ 0.10 to each subscriber for every

    asked by Alisha on April 1, 2015
  10. math

    a daily newspaper had 12,125 subscribers when it began publication. five years later it has 10,100 subscribers. what is the average yearly rate of change in the number of subscribers for the five year period?

    asked by michelle on November 5, 2017

More Similar Questions