Question

Suppose a star is approximately 38,000,000,000,000 kilometers from Earth. How do you write this number in scientific notation?

Answer 1

scientific notation is a way of writing very large or very small numbers
for example:

380 is written in scientific notion 3.8 x 10²
scientific notation is always a product of 2 numbers, the digit term (always a single digit, follow by a decimal sometimes )and the 10 to a certain power
in our case, we have 12 zeros after 38

the answer is 3.8 x 10 ^13