Three vertices of a square are (–1, 2), (2, 2), and (2, –1). what is the fourth vertex of the square?

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

Find the solution to this system 2,1 1,-2 1,2 -1,2

Amanufacturer knows that their items have a normally distributed lifespan, with a mean if 9.1 years, and standard deviation of 2.9 years. if you randomly purchase one item, what is the probability it will last longer than 10 years?