Answer:
Step-by-step explanation:
Given
Required
The image
Let the point be called A, such that the image is A'.
A' is calculated as:
This gives:
Answer: c
Step-by-step explanation:
This is the concept of arithmetic. To calculate the percentage of time life has existed we proceed as follows;
According to history:
The age of earth is 4.6 billion years
the age of life is as it appeared from unicellular is 3.8 billion years.
thus the percentage of the above will be:
3.8/4.6 x 100
=0.82609x100
=82.609%