Chapter 5, Problem 34RE

Researchers are comparing the growth rates of trees in a forest. The height of tree B over time is shown in the graph. The height of a new tree, C is shown in the table. 1. How many feet did tree B grow per year? 2. How many feet did tree C grow per year? 3. Which tree grew faster? *Please answer 1-3. I only have limited questions and can't post all of this individually. Thank you!* *FOR AN EXPERIMENT!!

Nuclear power plants use Uranium-239 as a power source. U-239 has a half-life of about 2 years. a) Complete the chart for the amount of 1000mg sample that will be left after 10 years. # of half life periods 0 Amount of U- 239 remaining 1000 1 500 2 Years 0 2 4 #N 8 10 b. Graph the relation. c. Write an equation to model the growth. d. How much will remain after 25 years?

(4) The value of a house can rise and fall with the real-estate market. The value of your house over the course of a decade can be modeled by the graph below, where x is the year and yis the difference between the value in that year and the original purchase price, in hundreds of dollars. Difference in price ($) 60 A) In which years did the house have the same value as it did when it was purchased? 40 20 B) What year was your house worth the most? 10 C) Write a possible polynomial function for this graph. 20 Year ...... Formulas to use: A- Iw and V-wh