Based on the diagram , P, Q, R and S are four vertices of a regular polygon with centre O. 1)Given OP is perpendicular to OS, determine the number of sides of the regular polygon.

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x. (30 points pls )

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? 0.62 0.78 0.84 0.96

The maximum distance (in nautical miles) that a radio transmitter signal can be sent is represented by the expression 1.23h√, where h is the height (in feet) above the transmitter. estimate the maximum distance x (in nautical miles) between the plane that is receiving the signal and the transmitter. round your answer to the nearest tenth.