Use a ratio box to solve this problem. Nia found the ratio of trilobites to crustaceans in the fossil exhibit was 2 to 3. If there were 30 fossils in the
exhibit, how many were trilobites?

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

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