1341220857
28.06.2020 •
Mathematics
What is the vertex of the function below?
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y = -3x2 + 18x – 8
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Ответ:
b = 20
c = 160
Step-by-step explanation:
c and 160 are opposite angles. Opposite angles are equal.
c = 160
b and 160 are linear pair angles. Sum of linear pair angles is 180.
b + 160 = 180
b = 180 - 160
b = 20