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OleMash [197]
2 years ago
10

PLEASE HELPPPP. I really need it

Mathematics
1 answer:
GalinKa [24]2 years ago
5 0

Answer:

Option 4: (0, 5]

Step-by-step explanation:

Given the <u>inequality notation</u>, 0 < <em>x</em> ≤ 5 :

<h2><u>Definitions:</u></h2><h3>open- and closed-parenthesis "(  )"</h3>

We know that using the <u>open- and closed-parenthesis</u>, "(  )" are used to express interval notation for which the endpoints are <em><u>not</u></em> included as part of the solution.  Hence, the open- and closed-parenthesis are associated with the inequality symbols, <em>less than </em>(>) or greater than (<), as you do not include the endpoints when these inequality symbols are used.

<h3>open- and closed-brackets "[     ]"</h3>

In contrast, the <u>open- and closed-brackets</u>, "[     ]" are used to express interval notation for which the endpoints <u><em>are</em></u> included as part of the solution.  Hence, the open- and closed-parenthesis are associated with the inequality symbols, <em>less than or equal to </em>(≤), and <em>greater than</em><em> </em><em>or equal to</em> (≥).

<h2><u>Explanation:</u></h2>

In the inequality notation, 0 < <em>x</em> ≤ 5, the endpoints are 0 and 5.  

The inequality symbol <u>between 0 and x</u> is "<," which means that we must use an open parenthesis, " ( " for the endpoint, 0.

While the inequality symbol <u>between x and 5</u> is "≤," which means that we must use an closed bracket, " ] " for the endpoint, 5.

Therefore, the correct answer is Option 4: (0, 5].

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A square is cut diagonally into two equal parts. If each part has an area of 50 cm^2, then what is the perimeter of each part?
AysviL [449]

Answer:

<u><em>30cm</em></u>

Step-by-step explanation:

Given data

When are square is cut diagonally into two parts

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3 0
3 years ago
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How do you solve 7.2&gt;0.9(n+8.6)
labwork [276]
7.2>0.9(n+8.6)
multiply 0.9 by all in parentheses

7.2> (0.9*n) + (0.9*8.6)
7.2> 0.9n + 7.74

subtract 7.74 from both sides
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divide both sides by 0.9
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Hope this helps! :)
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