Ascientist was interested in studying if students beliefs about illegal drug use change as they go through college. a scientist randomly selected 104 students and asked them before they entered college if they thought that illegal drug use was wrong or o. k. four years later, the same 104 students were asked if thought that illegal drug use was wrong or o. k. the scientist decided to perform mcnemar's test. the data is below. are the assumptions met? after college before college o. k. wrong o. k. 4 17 wrong 18 65

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot

Given the functions, fx) = x^2-4 and g(x) = x+ 2, perform the indicated operation. when applicable, state the domain restriction. f(g(x))