The center of a circle is at (-5, 7) and its radius is 6 units. which of the following is the equation for this circle? a) (x - 5)2 + (y + 7)2 = 36 b) (x + 5)2 + (y - 7)2 = 36 c) (x - 5)2 + (y + 7)2 = 12 d) (x + 5)2 + (y - 7)2 = 12

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y