Answer:
Step-by-step explanation:
6j - k = 23
6j + 3k = 11.....multiply by -1
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6j - k = 23
-6j - 3k = -11 (result of multiplying by -1)
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-4k = 12
k = -12/4
k = - 3 <=====
6j - k = 23
6j - (-3) = 23
6j + 3 = 23
6j = 23 - 3
6j = 20
j = 20/6
j = 10/3 <===
solution is : j = 10/3 and k = -3
It’s c (plane) if your asking for two-dimensional set of points
It's an octagon.
The sum of the measures of the angles in the polygon with n sides:
S = 180°(n - 2)
n = 8
S = 180°(8 - 2) = 180° · 6 = 1080°
Answer: 1080°