A 200-ft zipline cable is attached to the top of a tree and extends to an anchor on the ground. If the cable makes an angle of 61 degrees with the ground, then how far is the foot of the cable from the base of the tree?

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.