The ratio of the volume of sphere A to the volume of sphere B is 12564. What is the ratio of the radius of sphere A to the radius of sphere B?

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Which of the following parabolas opens down?