Which of the following are sets? true or folse a. 1,2,3 b. {1,2},3 c. {{1},2},3 d. {1,{2},3} e. {1,2,a, b}.​

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false

Select the correct answer from each drop-down menu. the table shows the annual sales revenue for different types of automobiles from three automobile manufacturers. sales revenue (millions of dollars) suv sedan truck marginal total b & b motors 22 15 9 46 pluto cars 25 27 10 62 panther motors 26 34 12 72 marginal total 73 76 31 180 the company with the highest percentage of sales revenue from sedans is . of the annual sales revenue from suvs, the relative frequency of pluto cars is .

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges