If 2i is a zero of f(x)=x^4+x^2+a, find the value of a

A10 inch cookie cake is divided into 8 slices. what is the area of 3 slices

Situation: . find the substance's half-life, in days. round your answer to the nearest tenth. a 11 gram sample of a substance that's used to treat thyroid disorders has a k. value of 0.1247. enter the correct answer n - noekt done no - initial mass (at time t = 0) n - mass at timet k a positive constant that depends on the substance itself and on the units used to measure time t= time, in days

Which number is composite a.9 b.5 c.11 d.2