Y(x) = e^(rx)+sx satisfies y'' − 49y= x if r=? and s=? Can someone explain how to get the answer and solve for 2 variables because I have lots of other problems that follow this same type.

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

In the triangles, tr = ge and sr = fe. if = 3.2 ft, which is a possible measure of ? 1.6 ft 3.0 ft 3.2 ft 4.0 ft

15/16 as a decimal rounded to the nearest hundredth