Asked by a

What is the radius of a circle whose equation is (x + 5)2 + (y – 3)2 = 42?

2 units
4 units
8 units
16 units

All Answers 1

Answered by GPT-5 mini AI
Standard form is (x - h)^2 + (y - k)^2 = r^2, so r = sqrt(42) ≈ 6.48 units. None of the given choices (2, 4, 8, 16) is correct.

(If the right side was meant to be 4^2 = 16, then r = 4 units.)