heyyy6096
13.08.2020 •
Mathematics
What is the name of the angle formed by BA and BC', given that the two rays share a common endpoint?
A ZBAC
B. ZABC
C. ZACB
D. ZCAB
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Ответ:
B. ∠ABC
Step-by-step explanation:
When naming an angle using three points, the points should be given in order, with the vertex of the angle in the middle. B is the only option that has the letters in the right order.
∠CBA would also be a valid name for the angle, but that's not one of the options.
The diagram below shows what the problem is describing.
Ответ:
Step-by-step explanation:
-15/10 - 8/10= - 23/10 Since both are a negative, you add the top or the numerator.