Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the following sequence with the given first term, a1, and common ratio, r. find a8 when a1=5, and r=3

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

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.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?