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Dafna11 [192]
4 years ago
7

Round to the nearest whole number. 30.44

Mathematics
1 answer:
qaws [65]4 years ago
7 0
30
Is the correct answer
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The area of a rectangle is found by multiplying the length by the width: A = lw. A certain rectangle has an area of x2 + 7x + 12
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Answer:

Option C is correct

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Step-by-step explanation:

Area of a rectangle is given by:

A =lw           ....[1]

where

A is the area of rectangle

l is the length of a rectangle

w is the width of a rectangle.

As per the statement:

A certain rectangle has an area of x^2 + 7x + 12

⇒A = x^2+7x+12

Now factor this trinomial :

A = x^2+4x+3x+12

⇒A = x(x+4)+3(x+4)

⇒A=(x+4)(x+3) unit square

On comparing with [1] we have;

l = x+4 unit and w = x+3 unit

Therefore,the length and width of the rectangle are:

l = x+4 unit and w = x+3 unit

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