A tree in Oakland has a mass of approximately 3 × 10^6 kilograms. A tree in Mapleville has a mass of approximately 6 × 10^4 kilograms. The mass of the tree in Oakland is about how many times greater than the mass of the tree in Mapleville? Write your answer in standard form.

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

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

Factor the polynomial, if possible. if the polynomial cannot be factored, write prime. 9n^3 + 27n^2 – 25n – 75