What is the value of r in the equation? Negative 1. 5 (4 minus r) = negative 12 –6 –4 4 6.
1 answer:
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Answer:
centre = (0, 0 ), radius = 5
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
x² + y² = 25 ← is in this form
with centre = (0, 0 ) and r = = 5