Week 31: geometric sequences and exponential functions
question 10: 10 pts
a computer is worth $3,200 when it is new. after each year it is worth half what it was the
previous year. what will its worth be after 4 years? round your answer to the nearest
dollar.
o
$50
o
$100
o
$200
$400

$400.

Step-by-step explanation:

This  is a Geometric sequence with first term 3,200 and common ratio 1/2.

The nth term = a1 r^(n-1),

so the 4th term is 3200(1/2)^(4-1)

= 3200 * 1/8

= $400.

answer: 19 is   2

step-by-step explanation: i just looked at your answer and wrote it down

2 5/8 is the final answer! : )