Substitute the value of b = -2 to the expression

Given that the half life of 3H is 12.3 years.
The amount of substance left of a radioactive substance with half life of

after t years is given by

Therefore, the number of years it will take for 18% of the original tritinum to remain is given by

Therefore, the number of <span>years that the time could be read at night is 30.4 years.</span>
The answer is 5/7. That is the answer :)
Answer:
Correct Answer is 1 Only 5 x 2 5x2 is the second-degree term. Hence, the correct option is (1)
note :
hope i helped
Because there are 26 Letters, there are 25 possibilities for the first letter, and 10 choices for the numbers, so:
25*26*26*10*10*10
Multiply:
650*26*1000
16900*1000
There are 16,900,000 possibilities