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bbyitskeke1242
19.01.2021 •
Mathematics
Find the percent of increase from 28 songs to 57 songs. Round to the nearest tenth of a percent if necessary.
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Ответ:
The answer is 50.8 but to the nearest tenth its 51% increase
Step-by-step explanation:
Ответ:
Option B is correct.
Statement: ∠AFE ≅ ∠AFD
Reason: Transitive Property of Equality
Explanation:
Given that:
Prove that :![\overleftrightarrow{GH} \perp \overleftrightarrow{DE}](/tpl/images/0030/9762/d006f.png)
Proof:
Given:
By theorem of corresponding angles:
For parallel lines cut by transversal , the corresponding angles are congruent.
then;
Transitive property of equality states that if x = y and y = z then; x = z
Using transitive property of equality in [1] and [2] we have;
By Linear pair theorem states that if the two pairs are adjacent to each other then they are supplementary.
⇒
and
are supplementary.
We know that:
If two congruent angles are supplementary, then each angle is of right angle i.,e 90 degree
⇒![m\angle AFD =m\angle AFE = 90^{\circ}](/tpl/images/0030/9762/50f32.png)
By definition of perpendicular line:
If two line meet at a right angle i.,e 90 degree, then those lines are perpendicular.
⇒
Hence proved!