Answer:
46
Step-by-step explanation:
The complete square starting with would be
, since the square would be
. To make this square perfect, then, you would need to add 46 to make 49 with the 3. Hope this helps!
Answer:
The correct answer is:
Between 600 and 700 years (B)
Step-by-step explanation:
At a constant decay rate, the half-life of a radioactive substance is the time taken for the substance to decay to half of its original mass. The formula for radioactive exponential decay is given by:
First, let us calculate the decay constant (k)
Next, let us calculate the half-life as follows:
Therefore the half-life is between 600 and 700 years