What are the coordinates of the vertices of a hyperbola with a center at (0,0) and a vertical transverse axis with foci at (0,±4) and asymptotes with equations y = ±(2/3)x?
+
What is 1/4 of 20 as a decimal?
+
What is the period of the trigonometric function y = 3sin(2x) - cos(x) - tan(5x) ?