Answer:
473 rounded to the nearest hundredth, would be 400.
So here, ABCD is being inscribed in a circle, so ABCD is a cyclic quadrilateral (as inscribed in a circle) also, there exists a property of cyclic quadrilateral, i.e, the sum of opposite angles of a cyclic quadrilateral is 180°, so we can just write the following equation using this :




Edited answer:
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-3.0 <span>÷ 1 = 3.0 ; is an answer.</span>
(y+3) = −6(x+9) Or y = −6x−57