The area of a rectangular window is (6x2 + 5x – 4)cm². The width of the window is (2x - 1)cm. (a) Find the height of the window in terms of x.
(b) If x = 40, find the perimeter of the window.

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 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.