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Anna11 [10]
3 years ago
15

Help please 10 points

Mathematics
1 answer:
irga5000 [103]3 years ago
6 0

Answer:   it's the third one and the first one

Step-by-step explanation:

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Triangle PQR hAS vertices P (4,-1),Q(-2,7), and R (9,9). find an equation of the median from R
strojnjashka [21]
A median intersects at the midpoint of the opposite length. The midpoint is:

x,m = (4+-2)/2 = 1
y,m = (-1+7)/2 = 3

The midpoint is at (1,3). With this point and point R(9,9), the equation would be:

y = mx + b, where
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Substituting any point,
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