Upcoming SlideShare
×

Alg2 lesson 10-6

222 views

Published on

0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

Views
Total views
222
On SlideShare
0
From Embeds
0
Number of Embeds
13
Actions
Shares
0
1
0
Likes
0
Embeds 0
No embeds

No notes for slide

Alg2 lesson 10-6

1. 1. Exponential Growth occurs when a quantityincreases by a fixed percent each time period. Models for exponential growth:a is the initial amountr or k is the percent of increase in decimal formt is the time
2. 2. Exponential Decay occurs when a quantitydecreases by a fixed percent each time period. Models for exponential decay:a is the initial amountr or k is the percent of decrease in decimal formt is the time
3. 3. The half-life of Sodium-22 is 2.6 years.What is the value of k for Sodium-22?
4. 4. A geologist examining a meteorite estimates that itcontains only about 10% as much Sodium-22 as itwould have contained when it reached the surface ofthe Earth. How long ago did the meteorite reach thesurface of the Earth? Answer: It was formed about 9 years ago.