Find the cross-sectional area of a conductor in millimeters squared when the diameter of the conductor is 25 millimeters. pi must be calculated as 3.14159. (round the final answer to two decimal places.)

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297