The caret (^) is the symbol conventionally used to indicate an exponent.
You have area = 2.76·10^12 width = 4.6·10^5
You want to find the perimeter of the rectangle with these dimensions.
The perimeter of a rectangle is twice the sum of length and width. perimeter = 2*(length + width) The length can be figured from the area using the formula for area. area = length*width area/width = length . . . . . . . . . divide by width Filling in the numbers, we have perimeter = 2*((2.76·10^12)/(4.6·10^5) +(4.6·10^5)) perimeter = 2*(6.0·10^6 +0.46·10^6) perimeter = 2*6.46·10^6 = 1.292·10^7
