In july 2008 the us national institutes of health announced that it was stopping a clinical study early because of unexpected results. the study population consisted of hiv-infected women in sub-saharan africa who had been given single dose nevaripine (a treatment for hiv) while giving birth, to prevent transmission of hiv to the infant. the study was a randomized comparison of continued treatment of a woman (after successful childbirth) with nevaripine vs. lopinavir, a second drug used to treat hiv. 240 women participated in the study; 120 were randomized to each of the two treatments. twenty-four weeks after starting the study treatment, each woman was tested to determine if the hiv infection was becoming worse (an outcome called virologic failure). twenty-six of the 120 women treated with nevaripine experienced virologic failure, while 10 of the 120 women treated with the other drug experienced virologic failure complete the hypothesis test and state an appropriate conclusion.

Match the following terms with their definitions. 1. bisector of a segment ray ba and ray bc are opposite rays if a, b, and c are collinear and b (the endpoint of both rays) is between a and c. 2. opposite rays a ray, , is the set of points beginning at point a and going infinitely in the direction of point b. 3. collinear points a line or segment that intersects the segment at its midpoint. 4. betweenness of points a set of two or more points all on the same line. 5. ray the distance between the endpoints of a segment. 6. space point b is between a and c if a, b, and c are collinear and the equation ab + bc = ac is true, where ab, bc, and ac are the distances between points a and b, b and c, and a and c, respectively. 7. midpoint of a segment a set of two or more points all on the same plane. 8. coplanar points the point on a segment that divides the segment into two equal segments. 9. length of a segment the set of all possible points. 10. line segment the set of two different endpoints and all points between them.

Brent wants to know what is 5 x 1/2

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?