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Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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
Transcribed Image Text:6. The function w(y) = -0.01y? + 0.27y+8.6 can be used to esimate the number of self-employed
workers in the United States, in millions, y years after 1980
(d) Find how many self-employed workers the model predicts will there be in 2010.
(e) What year(s) does the model predict has the most number of self-employed workers? How
many self employed workers will there be in that year.
(f) Find what the model predicts for the number of self-employed workers in 2026. Is this a
good model for the year 2026 and beyond? Explain
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- (3/5)x=71-xarrow_forwardThe U.S. population can be modeled by the function y=165.6x¹.345, where y is in thousands and x is the number of years after 1800. (a) What was the population in 1970, according to this model? (b) is the graph of this function concave up or concave down? What does this mean? (c) Use numerical or graphical methods to find when the model estimates the population was 94,150,000. (a) According to the model, the population in 1970 was thousands. (Round to the nearest integer as needed.)arrow_forwardThe function A = Age -0.00693x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 400 pounds of the material are placed in the vault, how much time will need to pass for only 115 pounds to remain? Round to nearest whole number. O A. 190 years O B. 360 years O C. 185 years O D. 180 yearsarrow_forward
- 48arrow_forwardThe amount of solar power installed in the US can be modelled as M(x) = 15.45(1.46*) megawatts, where x is the number of years since 2000. This model tells us that: In 2000, there 15.45 megawatts installed, and the amount is growing by 146% per year In 2000, there were 15.45 megawatts installed, and the amount is growing by 46% per year In 2000, there were 1.46 megawatts installed, and the amount is growing by 1545% per year In 2000, there were 1.46 megawatts installed, and the amount is growing by 15.45% per year.arrow_forward2=1/2 - x/10arrow_forward
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