Use scientific notation to find the product of 20.5 × 10^7 and 0.000036. 73.8 × 10 2
7.38 × 10 2
5.69 × 10 12
7.38 × 10 3

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm