Find the derivative and the analytic domain of f (z) = 1 + (i/x^2+1)

Jim is painting the inside of a circular helicopter pad. how many cans of paint would he need if the pad is 50 feet across and each can of paint covers about 200 ft2.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?