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katovenus [111]
3 years ago
7

LM has endpoints L(-1 1) and M(-5 -3) find the coordinates of the midpoint of LM

Mathematics
2 answers:
qaws [65]3 years ago
4 0
\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
L&({{ -1}}\quad ,&{{ 1}})\quad 
%  (c,d)
M&({{ -5}}\quad ,&{{ -3}})
\end{array}\qquad
%   coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)
\\\\\\
LM=\left(\cfrac{{{ -5}} -1}{2}\quad ,\quad \cfrac{-3+1}{2} \right)
kobusy [5.1K]3 years ago
4 0

Answer:

Midpoint of LM is (-3-1).

Step-by-step explanation:

LM has endpoints L(-11) and M(-5-3)

We have to find the coordinates of mid point of LM

If a line segment has two end points (x,y) and (x',y') then x-coordinates of the midpoint will be

x = \frac{x+x'}{2}

and y coordinates will be

Y =  \frac{y+y'}{2}

Now we put the values of endpoints to find midpoint of LM.

X =  \frac{-5-1}{2} =  \frac{-6}{2} = -3

Y =  \frac{1-3}{2} =  \frac{-2}{2} = -1

Therefore, mid point of LM is (-3-1).

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The angle that you have called 95 degrees is actually pretty close. I think you read the upper set of numbers on the protractor when you should have been reading the lower set. I make it 89, but I'll bet it is intended to be 90 degrees. 

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Question 23
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The sum of the three angles should be 360° I'm going to create an error term because I'm almost sure what I measured won't make 360. All circles when you make angles from any point inside them should make angles that add up to 360° when measured with a protractor if the rays of the angles all start from the same point. [If you don't know what a ray is, call it "the arms of the angles"].

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What to do
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