The width of a rectangle is 2 less than its length. if the perimeter of the rectangle is no more than30 centimeters, find the range of possible lengths and widths of the rectangle. use the formula, p=2l+2w, for the perimeter of the rectangle.

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 expressions are equivalent to -7+3(-4e-3)? choose all answers that apply: choose all answers that apply: a -4(3e+4)? 4(3e+4) b 12e12e c none of the above

Find the root(s) of f (x) = (x- 6)2(x + 2)2.