Y+y-3 is the expression need to find the triangle's area
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
Answer:
12 (2+3)
Step-by-step explanation:
You will find the GCF of 24 and 36 which is 12
3: t will equal 60°
180 divided by 3 is 60