D: {0, 1, 2, 3}
R: {−3, −2, 2, 5}
The relation is a function.
That's the answer.
The absolute value of the number plotted on the number line is; 0.5
<h3>How to find Absolute Value?</h3>
The absolute value (or modulus) | x | of a real number x is the non-negative value of x without regard to its sign. For example, the absolute value of 5 is 5, and the absolute value of −5 is also 5. The absolute value of a number may be thought of as its distance from zero along real number line
Thus, if 0.5 is marked on the number line, from the given options, we can say that if we apply the definition above that |0.5| = 0.5
Read more about Absolute Value at; brainly.com/question/24368848
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The set A satisfying the given inequality is A = (-
, -10].
<h3>What are some properties of an inequality relation? </h3>
Following are some facts which are true for an inequality relation:
- Equal numbers can be added or subtracted from both sides of an inequality without affecting the inequality sign.
- The Inequality sign is unchanged if both sides are multiplied or divided by a positive number, but when multiplied or divided by a negative number the inequality sign is reversed.

Since y ∈ B, -2 ≤ y ≤ 7. So,

The set {-x | inequality (1) holds ∀ y ∈ B} is [10,
) i.e.
10 ≤ -x ≤
.
Multiplying -1 throughout gives
-10 ≥ x ≥ -
.
x, thus, lies in the range A = (-
, -10}.
Learn more about the inequality here.
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Disclaimer: The question was incomplete. Please find the full content below.
<h3>Question </h3>
Find the set A such that for x ∈ A

∀y ∈ B = {y ∈ R | -2 ≤ y ≤ 7}.
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Answer:
142m
Step-by-step explanation:
This problem can be solved by simply using the pythagorean theorem, as you stated at the beginning of the problem, which is: 
You are given the <em>a</em> side and <em>b</em> side that are needed for this equation, so it's all a matter of plugging in the information you have:





Now, because the <em>c</em> is still squared, you must take the square root of 20200 in order to get the length of just side <em>c</em>:
≈142m