9. What is the amount of radioactive material remaining after 9 days in a radioactive sample with decay rate n = 25 (9) ²/2 modelled by the equation y = 25 a. 0.11 mg b. 0.19 mg 10. The simplified form of (az) (a³) i is: (aio) a. b. (az) C. 1.1 mg d. 2.2 mg C. (as) d. (a¹)

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