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Arada [10]
3 years ago
9

The length of a rectangle is given by the function l(x)=2x+1, and the width of the rectangle is given by the function w(x)=x+4.

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
7 0

Answer:

a(x)=2x^2+9x+4

Step-by-step explanation:

We have been given the length and width, as well as the formula to find the area:

Length: 2x + 1

Width: x + 4

A = l * w

A = (2x + 1)(x + 4)

2x^2 + 8x + x + 4

We can add like terms now:

2x^2 + 9x + 4

Our area is 2x^2 + 9x + 4

Our answer would be a(x)=2x^2+9x+4

Hunter-Best [27]3 years ago
5 0

Answer:

The correct answer is third option

a(x) =  2x² + 9x + 4

Step-by-step explanation:

It is given that,the length of a rectangle is given by the function l(x)=2x+1, and the width of the rectangle is given by the function w(x)=x+4.

<u>To find the area of the rectangle</u>

Area of rectangle = Length * Breadth

a(x) = l(x) * w(x)

 = (2x + 1)(x + 4)

 = 2x² + 8x + x + 4

 = 2x² + 9x + 4

The correct answer is third option

a(x) =  2x² + 9x + 4

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