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Margarita [4]
3 years ago
11

X cm

Mathematics
1 answer:
Drupady [299]3 years ago
3 0

Answer:

Step-by-step explanation:

x×x=x²

2×x=2x

2×x=2x

2×2=4

Add like terms to make the equation:

x^{2} +4x+4=7

So<em>:</em>

<em />x^{2} +4x=3

<em />

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there are 27 small cubes arranged in a 3 by 3 by 3 cube. The top and sides of the cube are painted red. How many of the 27 small
mars1129 [50]

1 Face has 0 face painted

Step-by-step explanation:

As per the question a  painted cube that is cut into 27 equal-size smaller cubes has been cut into a 3 * 3 * 3 arrangement.

 

There is 1 cube in the very center

 On each of the 6 sides of the cube, there is a central smaller cube that is painted once.

 

Of the 27 (3*3*3) smaller cubes formed by the cutting, 1 gets no paint, 6 are painted on 1 face, 12 are painted on 2 faces, and 8 are painted on 3 faces (total 27 cubes).

1 (no paint) + 6 (painted 1) + 12 (painted 2) + 8 (painted 3) = 27 total

The sum of the painted faces (of the small cubes) is 54 (which is 6*9).

3 0
3 years ago
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deff fn [24]

Answer:

did that first one its false

A= 53, B= 100, C= 27 (the last option)

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8 0
3 years ago
Because of variability in the manufacturing process, the actual yielding point of a sample of mild steel subjected to increasing
Alex73 [517]

Answer:

modify tge production

Step-by-step explanation:

7 0
3 years ago
Help please! I will mark Brainiest!!
aleksklad [387]

Answer:

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Step-by-step explanation:

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In quadrilateral ABCD, AD is congruent to BC, and AD is parallel to BC. Andre has written a
Dahasolnce [82]

Answer:

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I tried hard to sketch out what the shape looked like based on the information given, and that's because I need a visual of what the shape looks like. Sorry, this took so long to answer.

5 0
1 year ago
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