A frustum is formed when a plane that is parallel to a cone's base cuts off the upper portion, as shown below. A cone is shown. The top part of the cone is cut off to form a frustum. The frustum has a height of 6 and a radius of 4. The cone has a height of 3 and a radius of 2. What is the volume of the frustum? Leave the answer in terms of π.

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience. b. report the adverse drug experience to the irb only if there are several other occurrences. c. report the adverse drug experience as part of the continuing review report. d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb.

In recent years, there have been two major criticisms of congress and how it promotes the public good. describe these two in two paragraphs

Frequently, two expressways that intersect will be connected by a . a. cloverleaf interchange b. diamond interchange c. trumpet interchange