Question: Read below The equation y = -143x' + 1810x - 187x + 2231 where x represents the time in years since January 1, 1983 is

Read below

The equation y = -143x' + 1810x - 187x + 2231 where x represents the time in years since January 1, 1983 is a mathematical model for the number of AIDS cases, y, in some population between the years 1983 and 1991. According to this model, how long after January 1, 1983 was the number of AIDS cases in this population 39,690? Round your answer to one decimal place. 6.8 years .7.1 years .6.7 years 6.4 years 6.6 years

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

The equation y = -143x3 + 1810x - 187x+2231 where x represents the time in years since January 1, 1983 is a mathematical model for the number of AIDS cases, y, in some population between the years...

1. In 2013, several data server companies took a dramatic decision to begin using energy surcharges to recapture rising energy costs. However, customers are critical of how the energy surcharges are...

Attached below are my questions and a pdf file that needs to be read in order to answer the questions. This is a qualitative written response within finance, please provide as much detail as possible...

:Help me answer the following questions, thanks. Starbucks Corporation January 2017. After sitting through another long executive meeting, Starbucks chairman and CEO Howard Schultz, now in his...

JBR-07575; No of Pages 12 Journal of Business Research xxx (2012) xxx-xxx Contents lists available at SciVerse ScienceDirect Journal of Business Research Organizational innovation as an enabler of...

Budgeting for Nonprofit Organizations Although budgeting is just as important for nonprofit organizations as for for-profit companies, the approach taken toward budgeting can be very different. In...

Case Analysis 1. Compute the yield to maturity of Land'o'Toys' bonds before the purchase announcement and use it to determine the likely current bond rating. (Compare YTM to the table on p. 269)....

1. What is the issue being addressed in the paper? 2. What are the findings of the paper? 3. Why is this paper important to auditors, and what are the implications of this paper for the auditing...

Directions to students: Download the solution to part 1 in the doc share (FILE: Unit 1 ETHICS CASE) or by clicking on the button to the left. Review the solution to parts 1 and 2 in the case. Drawing...

Does law and ethics are related in business? Explain. (5 marks) b) If the High Court is faced with conflicting precedents, i.e. a recent decision of the Court of Appeal and a decision of a...

Compute Paasches index for 2013 using 2000 as the baseperiod. Price Quantity Item Cabbage (pound $0.06 $0.05 2,000 1,500 Carrots (bunch) Peas (quart) Endive (bunch) 2000 2013 2000 2013 0.10 0.20 0.15...

Problem 1 . ( 2 / 2 0 points ) Suppose that we wish to predict whether a given stock will issue a dividend this year ( Yes or No ) based on X , last year s percent profit. We examine a large number...

Computer Science Which type of consistency describes how changes to a data store are propagated to replicated copies. Continuous consistency Server centric consistency Data centric consistency Client...