Question

According to the consulting firm IHS Automotive, in the year 2014, global automobile sales reached 82.84 million vehicles. Express this number in standard form and properscientific notation

Answer 1

Let's change it by multiplying by 10^6.

So, the number is:

82,840,000 [82 million, 840 thousand]

Now,

For scientific notation, we have to take the decimal point until there is 1 digit to its left.

Thus it will be:

8.284

This number will be multiplied by a power of 10. This power will be the number of digits we went left to have 8.284 instead of 82,840,000...

Well, that's 7 digits. Thus, the scientific notation would be:

`8.284*10^7^{}`