What is the sum of 3 consecutive odd integers is no less then 51 what is middle integer

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

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.

Which system of linear inequalities is represented by the graph?