Evaluate the double integral ∬Dx6ydA, where D is the top half of the disc with center the origin and radius 4, by changing to polar coordinates.

The answers are 20,30,80,180,960,890,1230,4560. on the first row

The mode is the most frequently occurring value.

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.