If 2tanA=3tanB, then prove that tan(A+B)=5sin2B/(5cos2B-1) ...?​

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

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 : )

One of the solutions to x2 - 2x – 15 = 0 is x = -3. what is the other solution? ox=-5 ox= -1 0 x=1 x = 5