5) Express the vector A = ar(3 cos theta) - a theta(2r)+az5 in Cartesian coordinates and spherical coordinates.

Which of the following transformations will always produce a congruent figure?

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected