Which formula can be used to find the math term of a geometric sequence where the first term is 8 and the common ratio is -3?

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

What does x = in this equation x+3+2x=x+5

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14