Abram needs to build a window frame. He needs 2 pieces of lumber that are 4 3/4 feet long and 2 more that are 3 1/3 feet long. How much lumber does Abram need in all?

15.5 feets of lumber

Step-by-step explanation:

To build a window frame :

Length of lumber needed = 4 3/4 feets and 3 feets

Number of 4 3/4 feets lumber needed = 2

Number of 3 feets lumber needed = 2

Total required lumber :

(2 * 4 3/4)feets + (2 * 3) feets

(2 * 19/4) feets + 6 feets

9.5 feets + 6 feets

= 15.5 feets

4 3/4 + 4 3/4 = 8 6/4

3 1/3 + 3 1/3 = 6 2/3

8 6/4 + 6 2/3 = 14 8/12

Step-by-step explanation:

Hi my name is Dasey and I hope this helps!!

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option