1. Can you cover a 9x9 square chessboard with 1x2 dominos? 2. Can you cover a 8x8 square chessboard with 1x2 dominos?
3. Can you cover a 8x8 square chessboard with top-left and bottom-right corners removed with 1x2 dominos?

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.