The radius of a cylindrical construction pipe is 2ft. if the pipe is 19ft long, what is its volume? use the value 3.14 for π, and round your answer to the nearest whole number. be sure to include the correct unit in your answer.

Find |−5|. a. −5 b. 5 c. one-fifth d. –one-fifth !

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.