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2 years ago

These are the properties of rectangles.

Mathematics

1 answer:

valentinak56 [21]2 years ago

7 0

Answer:

What is not a property of all parallelograms?

Yes, opposite sides look congruent, and that's a property. But adjacent sides don't look congruent, and that's not a property. Do the sides appear to be parallel? Yes, opposite sides look parallel (and of course, you know this property if you know the definition of a parallelogram)

Step-by-step explanation:

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Answer:

15b

Step-by-step explanation:

3x5

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2 years ago

Solve for x in the following equation.<br> X/5=25<br> X=?

worty [1.4K]

Answer:

125

Step-by-step explanation:

25 × 5 = 125

x/5 = 25 × 5 = 125

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seraphim [82]

Answer:

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Step-by-step explanation:

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2 years ago

What expression must the center cell of the table below contain so that the sums of each row, each column, and each diagonal are

sergey [27]

Oh, I adore magic squares!

We need all rows to be equivalent, so try adding up the bottom (complete) row to get 7x-4x+3x=10x-4x=6x.

To solve the middle number, we have -2x+X+6x=6x, so X=2x.
To solve the top number, we have X+8x-3x=6x, so X=6x-8x+3x=x

Now check first column,
x-2x+7x=6x ok
Second column
8x+2x-4x=6x ok
Top-right to bottom-right diagonal: x+2x+3x=6x, ok
Bottom-left to top right diagonal: 7x+2x-3x=6x

So everything is ok!

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2 years ago

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Vlad1618 [11]

Answer:

search khan academy and theres video about it, for some reason brainly wont let me put answers and the explanation.

Step-by-step explanation:

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