1 / 10

12000

H. Suppose the acreage of forest is decreasing by 2% per year because of development. If there are currently 4,500,000 acres of forest determine the approximate amount of forest land after 100 years. 12000. I.

rama-morgan
Download Presentation

12000

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. H • Suppose the acreage of forest is decreasing by 2% per year because of development. If there are currently 4,500,000 acres of forest determine the approximate amount of forest land after 100 years. 12000

  2. I • The value of a piece of equipment has a decay factor of 0.80 per year. After 5 yr, the equipment is worth $98,304. What was the original value of the equipment? 597000

  3. S • Suppose one of your ancestors invested $500 in 1800 in an account paying 4% interest compounded annually. Find the account balance in the year 1900. 0.125

  4. O • A biologist is studying green peach aphids. In the lab, the population doubles every week. The expression models an initial population of 1000 insects after w weeks of growth. How many aphids will there be in 2 months? 25000

  5. P • Carbon-14 has a half-life of 5,700 years. Scientists use this fact to determine the age of things made of organic material. Suppose the average page of a book containing approximately 0.5 mg of carbon-14 is put into a time capsule. How much carbon-14 will each page contain after 11,400 years. 300000

  6. C • When you were born, your parents opened an account for you in which they put a penny when you were born. The account then doubles in value each year. How much money will be in the account when you turn 18? 256000

  7. K • The formula for the surface area of a cube is 6s2 where s is the length of a side of the cube. What is the surface area of a cube if the length of a side of the cube is 4.3 centimeters? 2600

  8. J • The bear population increases at a rate of 2% per year. There were 1573 bears in 2012. If the trend continues, in what year will the bear population be approximately 4500? 111

  9. U • The population of an endangered bird is decreasing at a rate of 0.75% per year. There are currently about 200,000 of these birds. Write a function that models the bird population. In how many years will the population be approximately half what it is now? 2065

  10. G • A new truck that sells for $29,000 depreciates 12% each year. Find the value of the truck after 7 years. 92

More Related