It took mary 1.5 hours to bicycle 39km. then she slowed down and took another 3 hours to bicycle 51 km more. find her average speed for the trip.
(total 8 points; 4 points for the answer, 2 points for the units labeled and 2 points for work shown or explanation)

The triangles are similar. what is the value of x? show your work.

Powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. a group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the united states. of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. if the p-value turns out to be 0.035 (which is not the real value in this data set), then at = 0.05, you should fail to reject h0. at = 0.04, you should reject h0. at = 0.03, you should reject h0. none of these would be a correct statement.

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?