Points POSSIDE SU
Date: 22720
Answer the following questions using what you've learned from this unit. Write your answers in the
ce provided. Be sure to show all work.
UNDERSTANDING STATISTICAL STUDIES
1. A biology class designed a study to see whether coffee drinkers or non-coffee drinkers remember
names better. 50 teachers were randomly selected. Some of the teachers who were selected drink
coffee and some do not. They were given the same list of student names to study and asked to recall as
many as possible.
Part A. Is this an observational study or an experiment? Explain. (2 points)

Find the area and perimeter of each composite figure. use 3.14 for π. round your answer to the nearest tenth. a square and a right triangle share a common side. image long description a 3-meter by 0.5-meter rectangle has triangles attached like wings to the 3-meter sides. the other two sides of both triangles measure 2.5 meters. the height of each triangle is 2 meters. a 6-inch by 4-inch rectangle has 2 half-circles attached like wings to the 6-inch sides. the radius of each half-circle is 3 inches. find the surface area and volume of each figure. use 3.14 for π. round your answer to the nearest tenth. a right circular cylinder has a base radius of 6 yards and a height of 20 yards. a rectangular prism has a base that is 9 centimeters long and 7 centimeters wide. the height is 2 centimeters. a rectangular prism has a base that measures 11 millimeters by 11 millimeters. the height is 11 millimeters.

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?