Agroup of researchers are interested in conducting a clinical trial to determine whether a new cholesterol-lowering agent was useful in preventing coronary heart disease (chd). they identified 12,327 potential participants for the trial. at the initial clinical exam, 309 were discovered to have chd. the remaining subjects entered the trial and were divided equally into the treatment and placebo groups. of those in the treatment group, 505 developed chd after 5 years of follow-up while 477 developed chd during the same period in the placebo group. what was the point prevalence of chd at the initial exam

Abdul is making a map of his neighborhood he knows the following information: his home, the middle school, and high school are all on the same street. his home, the elementry school, and his friends house are on the same street. the angle between the elementary school, middle school, and his home is congruent to the angle between his friends house, the high school, and his home. what theorem can abdul use to determine the two triangles are similar? a- side side side similarity theoremb- angle angle similarity theoremc- corresponding parts of similar triangles are congruentd- pieces of right triangles similarity theorem