Which two statements contradict each other?

i. lies on plane pqr.
ii. point s lies on plane pqr.
iii. does not lie on plane pqr.

a. i and ii

c. ii and iii

d. no two of the statements contradict each other.

Situation: . find the substance's half-life, in days. round your answer to the nearest tenth. a 11 gram sample of a substance that's used to treat thyroid disorders has a k. value of 0.1247. enter the correct answer n - noekt done no - initial mass (at time t = 0) n - mass at timet k a positive constant that depends on the substance itself and on the units used to measure time t= time, in days