How many more sample of adults needed to be taken to ensure the margin of error within 2% at 99% confidence interval.

Choose the more precise measurement. 26.4 cm or 8.39 cm

Biggest exam of the which of the following are polynomial functions?

An observer(o) spots a plane(p) taking off from a local airport and flying at a 29 degree angle horizontal to her line of sight and located directly above a tower(t). the observer also notices a bird circling directly above her. if the distance from the plane(p) to the tower(t) is 6,000ft., how far is the bird(b) from the plane(p).