Asmall company wishes to set up a fund that can be used for technology purchases over the next 6 years. their forecast is for $22,000 to be needed at the end of year 1, decreasing by $2,000 each year thereafter. the fund earns 10% per year. how much money must be deposited to the fund at the end of year 0 to just deplete the fund after the last withdrawal?

Dr. dow jones wants to know whether a problem-based approach to teaching economics will result in higher academic performance than his traditional method. of the six sections of economics 101 at his university, dr. jones randomly assigns three sections to the traditional method and three sections to the problem-based method for unit 1 of the course. then all sections switch the instructional method for unit 2. he plans to compare the performance of the two groups of sections on their unit 1 and unit 2 exams. this study employs a design.

Under t, the point (0,2) gets mapped to (3,0). t-1 (x, y) →

After testing its water, a city water department issues a report to the related citizens, noting what chemicals have been identified, their doses, and the estimated risks of exposure at these levels. this report represents a type of