Answer:
2.149 * 10^3
Step-by-step explanation:
The standard form of writing a scientific notation is expressed as;
A * 10*n
A is any integer between 1 and 10
n is any integer
Given the diameter of the moon = 2.149miles
Expressing in scientific notation;
2,149 = 2.149 * 10^3
Note that we shifted the decimal point 3 times to the back That's why the power is positive 3
