This is what we know:4x^2 + 12x + c = (2x + k)^2
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4x^2 + 12x + c = 4x^2 + 2kx + 2kx + k^2
c=9
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Answer:
multiplies by 4 then divides by 2
Step-by-step explanation:
Answer:

Step-by-step explanation:
First, we establish the following:
- B, A and C are on the circle
- AC is a diameter
- The center of the circle is O
Therefore:

The inscribed angle theorem states that an angle inscribed in a circle is half of the central angle that subtends the same arc on the circle.
Therefore:

Answer:
-1/2 is the opposite
Step-by-step explanation: -x is the opposite for number x, whatever x is