A rectangular piece of cardboard that is 7 inches by 20 inches has squares of length x inches on a side cut from each corner. (Assume that 0 < x < 3.) Represent the remaining area in the form of a polynomial function A(x).

The remaining area in the form of a polynomial function where  0 < x < 3.

Step-by-step explanation:

Breadth of rectangular piece of cardboard = 7 inches

Length of rectangular piece of cardboard = 20 inches

Area of cardboard =

Area of cardboard =

Area of cardboard =

Squares of length x inches on a side cut from each corner.

Length of square = x

Area of 1 square =

Area of 4 squares =

Area of remaining portion

So, the remaining area in the form of a polynomial function where  0 < x < 3.

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation: