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V 15. Graph and label at least two points on your graph: desmos and a. f(x) = (2.5)2* b. f(x) = log3 x c. f(x) = (;) %3D

V 15. Graph and label at least two points on your graph: desmos and a. f(x) = (2.5)2* b. f(x) = log3 x c. f(x) = (;) %3D

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.9: Combining Functions
Problem 2AGP
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necklace 11. After the World Series, sales of T-shirts and other memorabilia declines 30% per week. If $200,000 worth of souvenirs were sold during the Series, then find the following: a. Write a function that describes the exponential growth or decay with sales a function of time where t is in weeks. b. Find how much will be sold 4 weeks later? c. When will sales decrease to $20,000? 12. The amount (in billions of dollars) held in private pension funds can be approximated by the function h(x) = -11,052 +5742 In x where x = 10 corresponds to the year 1990. a. What was the amount in private pension funds in 2001 and 2009? b. If the model remains accurate, when will the amount reach $9000 billion? || 13. What rate of interest is required so that $4000 will yield $6000 after 3 years if the interest rate is compounded continuously? 14. A sample of 400 g of lead 210 decays to polonium 210 according to the function defined by A(t) = 400e-0.032t where t is time in years. %3D a. How much lead will be left in the sample after 25 years? b. How long will it take the initial sample to decay to half of its original amount? V desmos and 15. Graph and label at least two points on your graph: a. f(x) = (2.5)2* b. f(x) = log3 x c. f(x) = () %3D %3D 3 16. If G(x) = -t+2 , find G-1(1) . 17 Which of the following functions will have an inverse function? Why or why not?
Transcribed Image Text:necklace 11. After the World Series, sales of T-shirts and other memorabilia declines 30% per week. If $200,000 worth of souvenirs were sold during the Series, then find the following: a. Write a function that describes the exponential growth or decay with sales a function of time where t is in weeks. b. Find how much will be sold 4 weeks later? c. When will sales decrease to $20,000? 12. The amount (in billions of dollars) held in private pension funds can be approximated by the function h(x) = -11,052 +5742 In x where x = 10 corresponds to the year 1990. a. What was the amount in private pension funds in 2001 and 2009? b. If the model remains accurate, when will the amount reach $9000 billion? || 13. What rate of interest is required so that $4000 will yield $6000 after 3 years if the interest rate is compounded continuously? 14. A sample of 400 g of lead 210 decays to polonium 210 according to the function defined by A(t) = 400e-0.032t where t is time in years. %3D a. How much lead will be left in the sample after 25 years? b. How long will it take the initial sample to decay to half of its original amount? V desmos and 15. Graph and label at least two points on your graph: a. f(x) = (2.5)2* b. f(x) = log3 x c. f(x) = () %3D %3D 3 16. If G(x) = -t+2 , find G-1(1) . 17 Which of the following functions will have an inverse function? Why or why not?
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