2y = 4
-x = -3
what is the solution to this system of equations?
a) (2, 3)
eliminate
b) (-3, 2)
c) (3, 2)
d) (-3, 4)

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

The radius of a sphere is 3 inches. which represents the volume of the sphere?