Deals with 30-60-90 special right triangles, any help is appreciated!

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?

If jaime wants to find 60% of 320, which table should he use?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?