Line passes through points (9, 7) and (4, 11). Line is perpendicular to . What is the slope of line ?

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 of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.