Respuesta :
The option that expresses the age of tree in scientific notation with the lowest level of precision would be A. 3 X 10 to the 3rd power. As it contains the fewest number of significant figures.
Answer: [tex]3.2\times 10^3[/tex]
Step-by-step explanation:
In scientific notation, a given number is written as the product of two numbers, a coefficient and 10 raised to a power.
When written in standard form there must be one digit to the left of the decimal point in the coefficient.
[tex]N\times 10^n[/tex]
N= coefficient
n= power, can be positive or negative
Precision of a number refers to the decimal position of the significant digit furthest to the right. The number with more number of significant digits is more precise.
Thus [tex]3.2\times 10^3[/tex] is the least precise and written in scientific notation.