The 1985 explosion at a nuclear lab sent about 1000 kilograms of a radioactive e
ID: 3117184 • Letter: T
Question
The 1985 explosion at a nuclear lab sent about 1000 kilograms of a radioactive element into the atmosphere. The function fk)-100010.5)0 describes the amount f(x), in kilograms, of a radioactive element re area is considered unsafe for human habitation. Find f(70) and determine if the area will be safe for human habilation by 2055. (70)~(Type an integer or a decimal mounded to the nearest tenth as needed) Will the area be safe for human habitation by 2055? in the area x years after 1985 If even 100 klograms of the radioactive element remains in the atmosphere, the O A. No, because by 2055, the radioactive element remaining in the area is greater than 100 ktograms B. Yes, because by 2056, the radioactive element remanng in the area is less than 100 kilograms O C. No, because by 2055, the radioactive element remaining in the area is less than 100 kilograms 0 D. Yes, because by 2055, renaining in the radioactive element remaining in the area is greater than 100 kilogramsExplanation / Answer
f(70) = 1000 * (0.5)70/50
= 378.929
Option-A is the correct answer.
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