Find the perimeter of a rhombus having two consecutive vertices at (2, 5) and (-1, 3).
4square root of 5
4square root of 10
4square root of 13
4square root of 65

Acircle has a circumference of 28.36 units what is the diameter of the circle

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

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.