Answer:
C
Step-by-step explanation:
4y-9+4y simplified by combining like terms is 8y-9
Answer:
The chemically charges bionic dust formed by superconductor
Step-by-step explanation:
Answer: Option D.
Step-by-step explanation:
To solve this exercise you must keep on mind the Angle at the Center Theorem.
According to the Angle at the Center Theorem, an inscribed angle is half of the central angle.
Therefore, given in the inscribed angle m∠BAC=35°, you can calculate the central angle m∠EFD as following:

- Solve for EFD.

- When you substitute values. you obtain:

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