Mrs. Ralph decides to rent a movie theatre for her students to celebrate the end of the trimester. The rental rate is $250 for the first 2 hours and $50 for each additional half hour. What is the maximum number of hours she can rent the theatre for if she has set aside $600 for the event?

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

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

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle