The moon is a sphere with radius of 567 km. determine an equation for the ellipse if the distance of the satellite from the surface of the moon varies from 900 km to 169 km.

The triangles are similar. what is the value of x? show your work.

The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)

The graph of f(x) is obtained by reflecting the graph of f(x)=-3|x| over the x-axis. which equation describes f(x)? a) f(x)=3|x| b) f(x)=|x+3| c) f(x)=-3|x| d) f(x) = - |x+3|