Which property justifies this statement?

Mathematics

1 answer:

Brilliant_brown [7]3 years ago

7 0

For this case we have:

By definition, the Addition Property of Equality establishes that an equality is not altered as long as the same number is added on both sides of it. That is to say:

$a + b = c$ can be rewritten as:

$(a + b) + d = c + d$

If we have:

$x = -6$

We can add 6 to both sides of the equation, obtaining the following:

$x + 6 = -6 + 6x + 6 = 0$

Proving that the statement is true.

Answer:

Addition Property of Equality

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Use the diagram at the right to answer questions 22–27.

kvv77 [185]

22. 30 degrees because line DB bisects(meaning cuts in half) angle ABC so DBC should be 30 degrees because 30+30 is 60 which is what angle ABC is.

23. 60 degrees because if we assume that it is a parallelogramand that the opposite angle are congruent.

24. 120 degrees because a quadrilatteral has sides that will equal to 360 degrees, and I said that a parallelogram will have its opposite angles congruent we take away 120 from 360 (from the previous angles ABC and BCD) we end up with 240, we divide 240 by 2 and end up with 120 degrees

25. 60 degrees. I found that angle DCB is 120 degrees so angles DCB and DCE are supplementary(add up to 180 degrees) and we subtract 120 from 180 which is 60 degrees.

26. 60 degrees vertical to angle DCE.

27. 120 degrees supplementary to DCE

8 0

3 years ago

Work Out The Area Of The Shape: (Picture is shown in attachment)

Elenna [48]

Answer:

<h2>Solution :-</h2>

The given shape is known as Trapezium or Trapezoid.

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