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 e
xpression 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?
x2 − 13x + 4
3x2 − 13x + 4
3x2 − 11x + 4
x2 − 12x + 4
2 answers:
Answer:
3x^2−13x+4
Step-by-step explanation:
(x−4)(3x−1)
=(x+−4)(3x+−1)
=(x)(3x)+(x)(−1)+(−4)(3x)+(−4)(−1)
=3x^2−x−12x+4
=3x^2−13x+4
Answer:
Option A. 3x² - 13x + 4 is the answer.
Step-by-step explanation:
A conference room is in the shape of a rectangle. Its floor has a length of (x - 4) and width of (3x - 1) meters.
The expression that represents the area of the room is (x - 4)(3x -1) meter²
We further simplify this expression representing the area of the conference room.
(x - 4)(3x -1) = x(3x -1) - 4(3x -1) [Distributive law]
= 3x² - x - 12x + 4
= 3x² - 13x + 4
Option A. 3x² - 13x + 4 is the simplified form of the given expression.
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Step-by-step explanation:
Answer: -3
Step-by-step explanation:
18/6 = 3
18/-6 = -3
The perimeter of the triangle is B) 27.4
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