A projector displays an image on a wall. The area (in square feet) of the projection is represented by x^2-8x+15 a. write a binomial that represents the height of the projection
b. find the perimeter of the projection when the height of the wall is 8 feet​

Step-by-step explanation:

The area given:

a. The height is the factor of the area:

The width is x - 3, so the height is x - 5

b. The perimeter formula:

The height of the wall is 8 ft:

The perimeter is:

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft