Respuesta :
Answer: -x2 + 120x = 1,800
She plans on using the side of the barn as one side of her paddock so it has 3 sides. Since the width is shorter, it will be more efficient to have 2 widths (1 lengths and 2 widths). Because Jill has 120 feet of fencing to use, you can get this equation:
120ft= 1L +2W
1L= 120-2W
If you insert it into area formula it would be:
area= L*W
area= (120-2W) *W
area= 120W- 2W^2
-2W^2+120W= area
Since x represent the width of the paddock and the area is 1800 the equation become
-2X^2+120X= 1,800
She plans on using the side of the barn as one side of her paddock so it has 3 sides. Since the width is shorter, it will be more efficient to have 2 widths (1 lengths and 2 widths). Because Jill has 120 feet of fencing to use, you can get this equation:
120ft= 1L +2W
1L= 120-2W
If you insert it into area formula it would be:
area= L*W
area= (120-2W) *W
area= 120W- 2W^2
-2W^2+120W= area
Since x represent the width of the paddock and the area is 1800 the equation become
-2X^2+120X= 1,800
Answer:
Answer: -2x^2 + 120x = 1,800
Step-by-step explanation:
She plans on using the side of the barn as one side of her paddock so it has 3 sides. Since the width is shorter, it will be more efficient to have 2 widths (1 lengths and 2 widths). Because Jill has 120 feet of fencing to use, you can get this equation:
120ft= 1L +2W
1L= 120-2W
If you insert it into area formula it would be:
area= L*W
area= (120-2W) *W
area= 120W- 2W^2
-2W^2+120W= area
Since x represent the width of the paddock and the area is 1800 the equation become
-2X^2+120X= 1,800
