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nydimaria [60]
2 years ago
11

Brain cells aren’t working right now sorry please help

Mathematics
2 answers:
Scilla [17]2 years ago
8 0
6 hahahahahaahahaaahaahaah
balandron [24]2 years ago
7 0

Answer:

Step-by-step explanation:

6 lol

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What type of triangle is formed by joining the points D(7, 3), E(8, 1), and F(4, -1)?
attashe74 [19]
D(7,3) \\
E(8,1) \\
F(4,-1)

The lengths of the sides of the triangle:
\overline{DE}=\sqrt{(8-7)^2+(1-3)^2}=\sqrt{1^2+(-2)^2}=\sqrt{1+4}=\sqrt{5} \\ \\
\overline{DF}=\sqrt{(4-7)^2+(-1-3)^2}=\sqrt{(-3)^2+(-4)^2}=\sqrt{9+16}=\sqrt{25}=5 \\ \\
\overline{EF}=\sqrt{(4-8)^2+(-1-1)^2}=\sqrt{(-4)^2+(-2)^2}=\sqrt{16+4}=\sqrt{20}= \\
=\sqrt{4 \times 5}=2\sqrt{5}

No sides are equal to each other, so it's a scalene triangle.

Check if the sides satisfy the Pythagorean theorem:
(\sqrt{5})^2 + (2\sqrt{5})^2=5^2 \\
5+20=25 \\
25=25 \\
true
They do, so it's a right triangle.

The triangle is a right scalene triangle.
7 0
3 years ago
Read 2 more answers
The ratio of the same side angles of two parallel lines is 1:14. Find all angles.
Oksanka [162]
The angles that lie at the same side of parallel lines are known to be always supplement of each other. This means that when we add them together, the value is 180°. If we let x be the common factor for the measures of the angle, the equation that we could use to determine the answer is,
 
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The value of x from the equation is 12. Hence, the angles are,
       
              x = 12
            14(12) = 168

Answer: 12° and 168°
5 0
3 years ago
Given f(x) = 2x + 2, solve for x when f(x) = -4<br><br><br>Anyone know the answer? ​
Allushta [10]
X=-2 I’m pretty sure that’s the answer! :)
3 0
2 years ago
Please help me out! find f(-7)
exis [7]

Answer:

pretty sure its 0

8 0
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PLS HELP GEO TEST !!!!!!!!!<br><br>JUST NEED NUMBER 2
34kurt

Answer:

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Step-by-step explanation:

jjjdjekem2m w w wnwnn2n2n2n2m2kiwiw8w8wiwiwiwiiwkwke

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