What is the volume of a sphere with a radius of 9 units?

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?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

The volume of a cube is 8 in to the 3rd power. how long is each side?