Try the fastest way to create flashcards
Question

A government program that currently costs taxpayers $2.5 billion per year is cut back by 20 percent per year. Determine the convergence or divergence of the sequence of reduced budgets. If the sequence converges, find its limit.

Solution

Verified
Step 1
1 of 2

The sequence an=2.5109(810)na_n = 2.5\cdot10^9\cdot\left(\frac{8}{10}\right)^n is bounded below by 00 and is a decreasing sequence. Theorem 8.5 states that (an)(a_n) is a  convergent sequence\text{\color{#4257b2} convergent sequence}.

Lets find its limit:

limnan=limn2.5109(810)n=2.5109limn(810)n=2.51090=0\begin{align*} \color{#4257b2} \lim_{n \to \infty} a_n &=\lim_{n \to \infty}2.5\cdot10^9\cdot\left(\frac{8}{10}\right)^n \\ &=2.5\cdot10^9\cdot \lim_{n \to \infty}\left(\frac{8}{10}\right)^n \\ &= 2.5\cdot10^9\cdot 0 \\ &= \color{#4257b2} 0 \end{align*}

Create a free account to view solutions

Create a free account to view solutions

Recommended textbook solutions

Thomas' Calculus 14th Edition by Christopher E Heil, Joel R. Hass, Maurice D. Weir

Thomas' Calculus

14th EditionISBN: 9780134438986 (11 more)Christopher E Heil, Joel R. Hass, Maurice D. Weir
10,142 solutions
Calculus of a Single Variable 6th Edition by Bruce H. Edwards, Robert P. Hostetler, Ron Larson

Calculus of a Single Variable

6th EditionISBN: 9780395885789Bruce H. Edwards, Robert P. Hostetler, Ron Larson
7,505 solutions
Calculus: Early Transcendentals 8th Edition by James Stewart

Calculus: Early Transcendentals

8th EditionISBN: 9781285741550James Stewart
11,083 solutions
Calculus: Early Transcendentals 9th Edition by Daniel K. Clegg, James Stewart, Saleem Watson

Calculus: Early Transcendentals

9th EditionISBN: 9781337613927 (3 more)Daniel K. Clegg, James Stewart, Saleem Watson
11,050 solutions

More related questions

1/4

1/7