Question

What is 38,050,000 expressed in scientific notation?А. 3.805 x 108ОООв. 0.3805 x10^8С. 0.38 х 10-8D. 3 805 x 107

Answer 1

By definition, Scientific Notation has the following form:

$a\cdot10^b$

Where "a" is a number greater than or equal to 1, but less than 10 and "b" is an Integer.

In this case, you have this number:

$38,050,000$

To express it in Scientific notation, follow these steps:

-The decimal point must be after the first digit (which must not be zero), so you must move de the decimal point 7 spaces to the left, so "b" will be positive.

-Then, the exponent "b" will be 7.

So, you get 38,050,000 expressed in scientific notation is :

$=3.805\cdot10^7$