Find the slope of the line that passes through the points (-2,3 ) and (4,-5).

Evaluate cos2θ for cosθ = square root of 3/2

Find the quotient with the restriction.

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 : )