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son4ous [18]
3 years ago
10

Find the coordinates of the midpoint of the segment connecting points (9, 5) and ((–1, –7). In your final answer, include the fo

rmula and calculations that you used to find the midpoint.
Help Please!
Mathematics
1 answer:
Oliga [24]3 years ago
4 0
M [ ( 9-1)/2 , (5-7)/2 ] 
(4,-1)
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15. The length of each edge of a regular tetrahedron,
grigory [225]

Slant height of tetrahedron is=6.53cm

Volume of the tetrahedron is=60.35\mathrm{cm}^{3}

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Volume of the tetrahedron=\frac{a^{3}}{6 \sqrt{2}}

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