How to show your work for 39.6×5.20

205.92.

Step-by-step explanation:

We are asked to find the product of 39.6 and 5.20.

First of all, we will find the product of both numbers by replacing the decimals as:

     396

  X 520

     000

   7920

198000

205920

Now, we will count the combined number of digits after decimal of both numbers.

We can see that both number has 3 digits after decimal.

Now we will plot a decimal before 3 digits from right as:

Therefore, our required product is 205.92.

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse