3.3 The owner of a large electronic storage building wants to install air-conditioning. The size of the air conditioner depends on the capacity of the building. Below is a diagram with the dimensions of the building. The diagram is not drawn to scale. Note: It consists out of a rectangular prism and a triangular prism. Calculate the volume of the building, (9 5m 3m sm 3m 8m volume 3.4 The building needs to be painted on the outside. Calculate the surface area that needs to be painted. Hint: Consider the areas that need to be painted very carefully! (15)​

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Acircle has a circumference of 28.36 units what is the diameter of the circle

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex