(2) consider functions where the domain is {1,2, 10) and the range is {a, b). (a) how many of these functions are there? (hint: a function is considered different if at least one of its inputs is assigned to a different output. how many different outputs are possible for the input 1? what about for the input 2? (b) how many of these functions are onto? hint: take your answer to part (a), and subtract the number of functions that are not onto

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

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

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt