Rewrite in rectangular form: r=2sin thaeta

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

How is the number of vertices for a prism related to the name of the prism

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.