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Studentka2010 [4]
2 years ago
9

Simplify the expression. 10 (n^2+ n) - 6 (n^2 - 2)

Mathematics
1 answer:
Gnom [1K]2 years ago
3 0
<h3>10(n²+n)-6(n²+2)</h3><h3>10n²+10n-6n²-12</h3><h3>10n²-6n²+10n-12</h3><h3>4n²+10n-12</h3>

please mark this answer as brainlist

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What is a necessary step for constructing perpendicular lines through a point off the line?
mixas84 [53]

Draw arcs on either side of a given point on the line

To construct a line perpendicular to another line through a point on the line:

Measure a length from that point to one edge of the line

Draw two intersecting arcs on either sides of the line

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The only step necessary out of the given choices is "Draw arcs on either side of a given point on the line"

Option C is the correct choice

Learn more here: brainly.com/question/929137

7 0
3 years ago
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Find the measure of the largest angle in ABC if a = 12, b = 8 and c = 13.
Papessa [141]

Answer:

C=78.28^{\circ \:}

Step-by-step explanation:

We are given a triangle

whose sides are

a=12

b=8

c=13

Since, c is largest among them

So, angle C must be largest angle

we can find angle C

we can use law of cosine formula

cos(C)=\frac{a^2+b^2-c^2}{2ab}

now, we can plug values

cos(C)=\frac{12^2+8^2-13^2}{2\times 12\times 8}

cos(C)=\frac{13}{64}

now, we can find angle

we get

C=78.28^{\circ \:}

5 0
2 years ago
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Aliun [14]

Answer:

27 is correct.

Step-by-step explanation:

6 0
3 years ago
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Veseljchak [2.6K]

Answer:

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Step-by-step explanation:

4 0
2 years ago
(-13) (-4) işleminin sonucu kaçtır?<br>A -2.<br>B-1<br> 2<br><br>C 1<br> 2<br>D 2​
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Answer:

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Step-by-step explanation:

That is the answer sister-in-law

7 0
3 years ago
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