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3 years ago

Thanks for the help

Mathematics

2 answers:

Murljashka [212]3 years ago

6 0

[(3+5)x2-5] x 3

Do the parentheses first.

[8 x 2 - 5] x 3

Then multiplication.

[16 - 5] x 3.

Now the brackets.

[11] x 3 = 33

If this helped you, please list me as brainliest!

Whitepunk [10]3 years ago

4 0

[(3 + 5) x 2 - 5] x 3

= [8 x 2 - 5] x 3

= [16 - 5] x 3

= 11 x 3

= 33

Answer

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Answer:

(2x – 7) × (2x + 7)

Step-by-step explanation:

From the question given above, the following data were obtained:

Area (A) = (4x² – 49) m²

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The picture in the question above has a rectangular shape. Thus, the area is given by:

Area (A) = Length (L) × Width (W)

A = L × W

The dimension of the shape will be:

L × W

Now, we shall determine the dimension (L × W) as follow:

Area (A) = (4x² – 49) m²

Dimension (L × W) =?

A = L × W

L × W = 4x² – 49

Recall:

4 = 2²

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Thus,

L × W = 2²x² – 7²

L × W = (2x)² – 7²

Different of two squares

L × W = (2x – 7)(2x + 7)

L × W = (2x – 7) × (2x + 7)

Dimension = (2x – 7) × (2x + 7)

Therefore, the possible dimension (L × W) of the shape is (2x – 7) × (2x + 7)

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3 years ago

I need help with this problem. Given: BC = 10 inches AC = √50 inches m∠CBD = 60° m∠CAD = 90° Calculate the exact area of the sha

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