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Tom [10]
3 years ago
14

The area of a rectangle is represented by the polynomial x^2+3x-6x-18. What are the length, width, and area of the rectangle if

x=12?
Mathematics
1 answer:
Nitella [24]3 years ago
5 0

Answer:

Length = 15

Width = 6

Area = 90

Step-by-step explanation:

Area of the rectangle = {x}^{2}  + 3x - 6x - 18

Lets factorise the polynomial

=  >  x(x + 3) - 6(x + 3)

=  > (x  + 3)(x - 6)

We know that Area = Length × Width

Let the length be (x + 3) & width be (x - 6)

Its given in the question that x = 12. So putting the value of x gives ,

Length = x + 3 = 12 + 3 = 15

Width = x - 6 = 12 - 6 = 6

Area = Length × Width = 15 × 6 = 90

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I = 500 x .06 x 1

I = 30 x 1

I = 30

The interest on $500 for one year is $30.

7 0
3 years ago
Et.
kirza4 [7]

Answer:

-$5.50>x>$20

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Step-by-step explanation:

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4 0
3 years ago
Which is a greater measurement one mile or one kilometer
wel
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7 0
4 years ago
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Hope I helped!:)

4 0
3 years ago
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