Question

Compare: 4.3 x 10^6 O 12 x 10^5A.>B.

Answer 1

To check the bigger or smaller number, we can adjust the numbers such that they both have the same exponential power.

The first number can be written as shown below:

$4.3\times10^6=4.3\times10\times10^5=43\times10^5$

Now, both numbers have the same exponent. Therefore, we can compare the numbers 43 and 12.1.

Observation of the numbers on the number line shows that:

$43>12.1$

Therefore, we have that:

$43\times10^5>12.1\times10^5$

The correct option is OPTION A.