Rotation and reflection are instances of transformation
See attachment for the new position of
From the question, we have:
The rule of 90 degrees clockwise rotation is:
Using the above transformation, the new points would be
The next transformation is reflection over the x-axis
The rule of this transformation is:
So, the new points would be:
See attachment for the new points
Read more about transformation at:
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