Madeline was completing the square, and her work is shown below. identify the line where she made her mistake. f(x) = 3x2 + 6x ? 7 line 1: f(x) = 3(x2 + 2x) ? 7 line 2: f(x) = 3(x2 + 2x + 1) ? 7 ? 1 line 3: f(x) = 3(x + 1)2 ? 8

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. find the lateral area for the prism. l.a. = 0123456789

Let x = a + bi and y = c + di and z = f + gi. which statements are true?