Which of the following is a true statement?

1. all square roots are irrational.
2. all decimals are irrational.
3. all non-perfect squares have irrational square roots.
4. all irrational numbers can be written as ratios of two integers

Gray looks up the definition of point. a point is a location in a region. what is true about the statement describing the word point? 1. the statement uses the terms location and region that are defined based on an understanding of a point. 2.the statement precisely defines the concept of a point. 3. the statement does not include information needed to fully define a point. 4. the statement is an incorrect description of a point because it does not use mathematical words.