Answer:
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Step-by-step explanation:
Step-by-step explanation:
Equation of a circle in standard form is given as:

The answer is 2.7
hope this helps
Answer:
x = 21
Step-by-step explanation:
Vertical angles are congruent, this
3x - 30 = 2x - 9 ( subtract 2x from both sides )
x - 30 = - 9 ( add 30 to both sides )
x = 21
Answer:
78
Step-by-step explanation:
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