Add the following complex numbers: (5-3i)+(10+5i)

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3