Which of the following situations describe exponential growth? check all of the boxes that apply.
1) the number of butterflies in an area increases by 10% per year.
2)the population of a city increases by 500 people per year.
3) kristy bought a collector’s coin for $2.15 and its value increases at a rate of 3% per year.
4)the number of people who have heard a rumor increases because every person tells 2 other people.
edgenudity

Which of the following statement about pascal's triangle are true?

Which expression gives you the distance between the points (5,1)and(9,-6)

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