2 answers:
Answer:
Vertical; 47
Step-by-step explanation:
The two angles are vertical since they are opposite to each other. Vertical angles are equal therefore, x equals 47° as well.
Answer:
vertical,47
Step-by-step explanation:
they are not right next to each other they are across so that is vertical and vertical angles are equal so the second option is correct
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Answer:

Step-by-step explanation:
the unit of length is meter,
so, 80cm=0.8cm, 10cm=0.1m
the length of the rail=
=
Answer: x = 14
Step-by-step explanation: 14 minus 12 is 2
Answer:
-4x^2-28x
Step-by-step explanation:
Distribute
-4x(x) and -4x(-7)
-4x^2 and -28x
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I followed the formula but why donMt have the answer right here

then

∠C = 64.856