Answer:
The half-life of the radioactive substance is 135.9 hours.
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Answer:
0.049
Step-by-step explanation:
17÷1=17
17÷12=1.42
1.42÷29=0.049
Answer:
0.3
Step-by-step explanation:
Total number of cases = 60.
favourable number of cases = 18. (Since 18 of them are wearing green shirt)
As we know probability of an event is given by ,
P = Favourable number of cases divided by Total number of cases
Thus here,
P = 
=
or 0.3
Answer:
the answer is 140 , please let me know if I am wrong.