What is true about the solutions of a quadratic equation when the radicand of the quadratic formula is zero? a. no real solutions b. two identical rational solutions c. two different rational solutions d. two irrational solutions

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

The seventh-grade students at charleston middle school are choosing one girl and one boy for student council. their choices for girls are michaela (m), candice (c), and raven (r), and for boys, neil (n), barney (b), and ted (t). the sample space for the combined selection is represented in the table. complete the table and the sentence beneath it.

The olympic-size pool at the recreational center is a right rectangular prism 50m long and 25m wide. the pool contains 3000m of water. how deep is the water in the pool?