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CaHeK987 [17]
2 years ago
8

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Mathematics
2 answers:
Reil [10]2 years ago
8 0

Answer:

x = 2

Step-by-step explanation:

Firstly, calculate the area of the rectangle with the formula:

Length x width = area

(x+6) * 3 = 3x + 18

The formula for the area of a triangle is:

\frac{1}{2} * b * h

We can plug the known variables into the equation and get:

\frac{1}{2} * 8 * (x+4)

4 * (x + 4)

4(x + 4)

4x + 16

As the two areas are the same:

4x + 16 = 3x + 18

Subtract 3x from both sides of the equation:

4x + 16 - 3x = 3x + 18 - 3x

x + 16 = 18

Subtract 16 from both sides of the equation:

x + 16 - 16 = 18 - 16

x = 2

Hope this helps!

LuckyWell [14K]2 years ago
3 0

Answer:

c

Step-by-step explanation:

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x

)

=

3

x

2

−

x

+

5

+

2

x

−

3

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f

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g

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3

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2

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2

x

)

+

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5

−

3

)

(

f

+

g

)

(

x

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3

x

2

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x

+

2

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f

+

g

)

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x

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2

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x

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+

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x

−

3

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(

f

+

g

)

(

x

)

=

3

x

2

+

(

−

x

+

2

x

)

+

(

5

−

3

)

(

f

+

g

)

(

x

)

=

3

x

2

+

x

+

2

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