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Murrr4er [49]
3 years ago
9

The width of a rectangle is y feet long. The rectangle is 4 feet longer than it is wide. What is the area of the rectangle? Whic

h expression represents the area? y(y + 4) sq ft y + 4 sq ft 4y sq ft y2 + 4 sq ft
Mathematics
2 answers:
Korolek [52]3 years ago
8 0

y(y + 4) sq ft  =   is the answer

   


Nimfa-mama [501]3 years ago
3 0

Answer:

The area of the rectangle is y(4+y) feet² .

Step-by-step explanation:

Formula

Area of the rectangle = Length × Breadth

As given

The width of a rectangle is y feet long. The rectangle is 4 feet longer than it is wide.

Breadth = y

Length = 4 + y

Putting all the values in the formula

Area of the rectangle = y × 4 + y

                                    = y(4 + y) feet²

Therefore the area of the rectangle is y(4+y) feet² .

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7 0
3 years ago
Is the following expression true or false? Show your work.
Paul [167]

Answer: True

Solution:

Rearrange the equation to the LHS:

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= = (x+4)2

So now we have an equation

(x + 4)^2 • (x - 4)^2 -  (x^2 - 16)^2  = 0

Step 2: Evaluate the following:

(x+4)2   =    x^2+8x+16

(x-4)2   =    x^2-8x+16  

(x^2-16)2   =    x^4-32x^2+256

(x^2+8x+16)  (x^2-8x+16  ) -  (x^4-32x^2+256 )

0 = 0

Hence True

3 0
3 years ago
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Answer:

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Step-by-step explanation:

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