Mr. Worster is on a passenger train that is headed East at 45 kilometers per hour. Suddenly he gets very hungry, so he gets up and walks West
toward the vending machine at 3 kilometers per hour. If someone on the
ground were watching the train go by, how fast would it appear Mr.
Worster is moving?

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)

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.

Answer pls man im trying to get out of summer school