Evaluate the expression 9(m-n)^2) when m=4 and n=1

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?

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

Is of - 4x + 2? a. 3 b. 4 c. 6 d. 5