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galina1969 [7]
2 years ago
7

Simplify 22+[55-{72÷(7+5×2-11)+3}+2]​

Mathematics
1 answer:
Minchanka [31]2 years ago
4 0

Answer:

<h2>64</h2>

Step-by-step explanation:

In the picture

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Juli2301 [7.4K]

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2 years ago
The height of a triangular window is 3 feet less than its base. The area the window is 20 ft.? find the dimensions of the window
Ivenika [448]

Let us assume base of the window = b feet.

Height is 3 feet less than base, that is = (b-3).

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Area = \frac{1}{2} × Base × Height

Plugging values in formula, we get

20 = \frac{1}{2} b \times (b-3)

\mathrm{Multiply\:both\:sides\:by\:}2

40=b\left(b-3\right)

40=b^2-3b

b^2-3b-40=0

Factoring quadratic, we get

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<h3>Therefore, base of the triangle = 8 feet and height = 8 -3 = 5 feet.</h3>
6 0
2 years ago
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