F varies directly with m and inversely with the square of d . If F = 60 when m = 1470 and d = 7 , find F when m = 2560 and d = 8

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

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.

Find the value of x. round the length to the nearest tenth