Answer: c
Step-by-step explanation:
B. Givin
C. Definition of complementary angles
D. Congruent complements theorem
Answer:
(A) Linear pair postulate
Step-by-step explanation:
Given: AB intersects DE at point C.
To prove: ∠DCB≅∠ECA
Proof:
Statements Reasons
1. AB intersects DE at point C. given
2. ∠DCB and ∠BCE are a linear pair Definition of linear pair
3. ∠DCB is supplementary to ∠BCE Linear pair postulate
4. ∠BCE and ∠ECA are a linear pair Definition of linear pair
5. ∠BCE is supplementary to ∠ECA Linear pair postulate
Thus, from statement 2 and 5, we have
∠DCB+∠BCE=180° and ∠BCE+∠ECA=180°
⇒∠DCB+∠BCE=∠BCE+∠ECA
⇒∠DCB≅∠ECA
Hence proved
thus, option A is correct.
The percent of change from 62 trees to 31 trees is 50 % after applying the concept of percentage.
It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
It is given that:
The percent of change 62 trees to 31 trees
Let x be the percent:
The value of x can be evaluated as:
As we know, the usage of percentages is widespread and diverse. For instance, numerous data in the media, bank interest rates, retail discounts, and inflation rates are all reported as percentages. For comprehending the financial elements of daily life, percentages are crucial.
x = [(62 - 31)/62]×100
x = [31/62]×100
x = 50 %
Thus, the percent of change 62 trees to 31 trees is 50 % after applying the concept of percentage.
Learn more about the percentage here:
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Answer:
Step-by-step explanation:
In this representation, the middle refers to the median, which is calculated by separating elements in equal parts and see which data results in the middle.
From the graph you can observe that number 13 has 6 elements on its right side and 5 elements on its left side, which is the most proximity to the middle of the group of data.
Therefore, the answer is 13, it's in the center.
Answer:
13
Step-by-step explanation:
i'm assuming 13 because when you divide the total to sides that's what you get but i'm not 100% sure