personal income that is used to pay pers given by y = 0.034x2 – 0.044x + 12.64 where x is the number of years past 1990 (Sc of Economic Analysis, U.S. Department of (a) Verify that x = 7 is a solution of 14 0.044x + 12.642. (b) Find the year or years when the percen

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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3) Personal taxes Suppose that the percent of total
personal income that is used to pay personal taxes is
given by
y = 0.034x² – 0.044x + 12.642
where x is the number of years past 1990 (Source: Bureau
of Economic Analysis, U.S. Department of Commerce).
(a) Verify that x = 7 is a solution of 14 = 0.034x² –
0.044x + 12.642.
(b) Find the year or years when the percent of total per-
sonal income used to pay personal taxes is 14.
Transcribed Image Text:3) Personal taxes Suppose that the percent of total personal income that is used to pay personal taxes is given by y = 0.034x² – 0.044x + 12.642 where x is the number of years past 1990 (Source: Bureau of Economic Analysis, U.S. Department of Commerce). (a) Verify that x = 7 is a solution of 14 = 0.034x² – 0.044x + 12.642. (b) Find the year or years when the percent of total per- sonal income used to pay personal taxes is 14.
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