What is the area of this figure

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

What is the quadric regression equation that fits these data

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?