1.Graphite is made up of layers of graphene. Each layer of graphene is about 200 ×10-12 meters thick. How many layers of graphene are there in a piece of graphite that is 1.6 10-3 meters thick? Express your answer in scientific notation.

Evaluate the following expression 1/3^2

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.

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie