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dedylja [7]
2 years ago
15

Whats the answer to this numeric algebraic expression

Mathematics
1 answer:
Degger [83]2 years ago
4 0

Answer:

a+b+2

Step-by-step explanation:

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Mario purchased a computer with a screen that measures 16.0 inches diagonally. The length of the screen is 11 inches. What is th
Vesnalui [34]

Answer:

11.61 in

Step-by-step explanation:

the screen when divided diagonally, forms 2 right triangles

diagonal = hypotenuse = 16

16^2 = 11^2 + w^2

w^2 = 135

w = 11.61

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2 years ago
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Find the length of a
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Answer:

I think it's B I hope this is the right answer.

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A boy is building a pyramid out of building blocks. He puts 20 blocks in the first row, then he puts 19 blocks in the row above,
rjkz [21]

Answer:

<h3>The answer is 206 I believe</h3>

8 0
3 years ago
What is the surface area of this composite solid?______________ square feet 242 319 363 517
jeka57 [31]

Answer:

<h2>The right answer is 415.4 cubic feet.</h2>

Step-by-step explanation:

As you can observe in the image attached, the composite figure is formed by a square prism and a pyramid on top.

We need to find the volum of each part separately.

<h3> Square prism.</h3>

V_{prims}=11 \times 11 \times 2=242 \ ft^{3}

<h3>Square pyramid.</h3>

First, we need to find the height of the pyramid. We already know the height of each triangular face of the pyramid, which divides equally the side.

Let's use Pythagorean's Theorem to find the height of the pyramid.

7^{2}=h^{2} +(5.5)^{2}\\  49-30.25=h^{2}\\ h=\sqrt{18.75} \approx 4.3

The height is 4.3 feet, approximately.

Now, we find the volume of the pyramid

V_{pyramid}=\frac{1}{3}(11 \times 11 \times 4.3) \approx 173.4ft^{3}

The sum of both figures represents the total volume of the composite figure

V_{total}=242+173.4=415.4ft^{3}

Therefore, the right answer is 415.4 cubic feet.

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3 years ago
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Decide if the answer to 8/7 x 12 is less than, greater than, or equal to 12.
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Answer:

Option C.

Step-by-step explanation:

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