Question

A conference room is in the shape of a rectangle. Its floor has a length of (x − 4) meters and a width of (3x − 1) meters. The expression below represents the area of the floor of the room in square meters:

(x − 4)(3x − 1)

Which of the following simplified expressions represents the area of the floor of the conference room in square meters? (5 points)


A.x2 − 13x + 4
B.3x2 − 13x + 4
C.3x2 − 11x + 4
D.x2 − 12x + 4

Answer 1

Answer: it’s b, 3x^2-13x+4. I took the test

Explanation:

Answer 2

To know the area of a rectangle the equation L x W is used where L is length and W is width. In this problem L is x-4 while W is 3x-1, by simply multiplying both we can get the area.
in equation,
(x-4)(3x-1)
3x^2-1x-12x+4
3x^2-13x+4.
The letter B. 3x^2 - 13x +4 is the simplified expression which represents the area of the floor of the conference room in square meters.