Unit 3: Informal Check Option 2 The picture shows the dimensions, in centimeters, of two rectangles.

Write an expression in simplest form that represents the difference in the areas, in square centimeters, of rectangle A and rectangle B. (Use "^" for exponents. For example, "x^2" means "x to the second power".)

Step-by-step explanation:

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.