The diameter of circle J is 18 cm. The diameter of Circle K is 31 cm. Which circle what has the greater area and by how much? Use 3.14 for pie. Describe two ways you can compare the areas of two circles. Explain when you might prefer to use each.

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 is the graph of this function 3 square root of x plus one if

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18