Question

The grounds crew at a college is installing a path around a pond on campus as shown.9x + 10x2 - x4x2 - 7x + 8- x?+ 9x + 12What is the perimeter of the path?A. – 3 + 15x2 + 25% + 20B. 12x2 + 2x + 20C. -13 + 13x2 + 11x + 20D. 1232 + 25x + 20

Answer 1

The perimeter of a figure or shape is the distance around it.

The perimeter of the given path would be

9x + 10x^2 - x^3 + 4x^2 - 7x + 8 - x^2 + 9x + 12

We would collect like terms. It becomes

- x^3 + 10x^2 + 4x^2 - x^2 + 9x + 9x - 7x + 8 + 12

= - x^3 + 13x^2 + 11x + 20

The correct option is C