How many percents are added every 6 minutes ?

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?

Find the area of the regular hexagon if a side is 20 cm.

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?