Prove that square root of 2 plus square root of 3 is irrational

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?