Which algebraic expression represents “the class was divided into four equal groups”? 4 + w 4w 4 – w w/4

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?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5