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kherson [118]
3 years ago
13

Quadrilaterals are squares

Mathematics
1 answer:
fomenos3 years ago
3 0
<u>Basic answer</u>
When is a quadrilateral a square?
When it has four right angles and four congruent sides.

<u>Geometry Answer (just in case, since the question is vague)</u>
How can you prove if a quadrilateral is a square?


It is a square if it is both a rectangle and a rhombus.

It is a rectangle if
a) It has a right angle and is a parallelogram
b) It has congruent diagonals and is a parallelogram
c) It has four right angles

It is a rhombus if
a) It has two adjacent sides congruent and is a parallelogram
b) Its diagonal bisects opposite angles and it is a parallelogram
c) Its diagonals perpendicular bisect each other

It is a parallelogram if
a) Two pairs of opposite sides parallel
b) Two pairs of opposite sides congruent
c) One pair of sides both congruent and parallel
d) The diagonals bisect each other
e) Two pairs of opposite angles congruent
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tatyana61 [14]

Answer:

A ∩ B = {2, 4}

Step-by-step explanation:

Definition: The intersection A ∩ B of two sets A and B is the set that contains all elements of A that also belong to B.

For example:

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then;

x∈ A ∩ B

Given the sets:

A = {1, 2, 3, 4, 5} and B = {2, 4}

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By definition we have;

A ∩ B = {2, 4}

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4 0
2 years ago
Y=x+2<br> x-y=2<br> What is the solution
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Answer:

No solutions.

Step-by-step explanation:

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8 0
3 years ago
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lara31 [8.8K]
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6 0
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debra buys a new mountain bike for 750 dollars . Sales tax is 9% . how much does Debra actually have to pay ?
Georgia [21]

Answer:

$817.50

Step-by-step explanation:

Hello  Matt7151!

To find the total amount, we will first need to find how much tax.

We can express 9% as the fraction \frac{9}{100}.

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So she's paying $67.50 sales tax.

750.00

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So Debra's really paying $817.50.

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3 years ago
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