Rectangle ABCD has vertices at A(-1,1), B(2,1), C(2,-5), and D(-1,-5). What is the perimeter of rectangle

The perimeter of the rectangle is 18 units.

Step-by-step explanation:

The image included below presents the location of the points on the Cartesian plane. From Geometry we get that the perimeter (), dimensionless, of the rectangle is the sum of its four sides. That is to say:

(1)

Where , , and are the sides of the rectangle, dimensionless.

Each side value is found by means of the Pythagorean Theorem:

And the perimeter of the rectangle is:

The perimeter of the rectangle is 18 units.

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

17.08

correct me if i am wrong.