5. which equation is of a circle that has a center at (3,-2) and a radius of 9? a (x + 3)2 + (y - 2)2 = 9 b (x + 3)2 + (y - 2)2 = 81 c (x - 3)2 + (y + 2)2 = 9 d (x - 3)2 + (y + 2)2 = 81

Step-by-step explanation:

The standard form of an equation of a circle:

(h, k) - center

r - radius

We have the center at (3, -2) and the radius r = 9. Substitute:

its an acute right triangle

step-by-step explanation:

need more detail

step-by-step explanation:

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