One of the medical uses of Iodine–131 (I–131), a radioactive isotope of iodine, is to enhance x-ray
images. The half-life of I–131 is approximately
8.02 days. A patient is injected with 20
milligrams of I–131. Create an exponential
function that will calculate the amount of I-131
left after d days.

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Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv

What is the circumference of the pie